{"title":"−40°C to −86°C Ultra-Low Temperature Freezers","description":"\u003cp data-start=\"4074\" data-end=\"4235\" class=\"PDq2pG_selectionAnchorContainer\"\u003eExplore Meling Biomedical ultra-low-temperature freezers designed for professional storage applications requiring operating temperatures between −40°C and −86°C.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"4237\" data-end=\"4649\"\u003eThis collection includes compact 50 L and 110 L undercounter models, along with 530 L and 780 L dual-cooling upright systems for higher-volume institutional storage. Depending on the model, available features include inverter compressors, touchscreen controls, local temperature recording, USB data export, alarm monitoring, access control, heated vacuum-relief ports, and dual independent refrigeration systems.\u003c\/p\u003e\n\u003ch3 data-section-id=\"fzgflg\" data-start=\"4651\" data-end=\"4677\"\u003eWhy Meling Biomedical?\u003c\/h3\u003e\n\u003cp data-start=\"4679\" data-end=\"5453\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eMeling Biomedical is an established life-science refrigeration manufacturer with more than two decades of specialized cold-storage experience. As the \u003cstrong data-start=\"4829\" data-end=\"4902\"\u003efirst manufacturer in China to produce ultra-low-temperature freezers\u003c\/strong\u003e, the company brings a long history of specialized ULT development and refrigeration engineering. Its products are supported by dedicated research, testing, and manufacturing capabilities. Models offered by Solution Instruments are UL and cUL certified, with additional certifications available depending on the model. \u003cstrong data-start=\"5221\" data-end=\"5415\"\u003eSolution Instruments is Meling Biomedical’s authorized Canadian distributor, \u003c\/strong\u003eproviding reliable warranty support, responsive customer service, and local assistance before and after purchase.\u003c\/p\u003e","products":[{"product_id":"meling-biomedical-dw-hl50-40-c-to-86-c-undercounter-ultra-low-temperature-freezer-50-l","title":"Meling Biomedical DW-HL50 −40°C to −86°C Undercounter Ultra-Low Temperature Freezer 50 L","description":"\u003ch1\u003eMeling Biomedical DW-HL50 −40°C to −86°C Undercounter Ultra-Low Temperature Freezer 50 L\u003c\/h1\u003e\n\u003cp\u003eThe Meling Biomedical DW-HL50 is a compact 50 L ultra-low temperature freezer designed for long-term storage of temperature-sensitive biological materials between −40°C and −86°C. Its undercounter cabinet combines a stainless-steel interior, insulated inner door, microprocessor temperature control, mixed-refrigerant refrigeration system, local USB temperature logging, comprehensive alarm protection, and secure solid-door construction. The compact configuration is suitable for laboratories, research facilities, biobanks, clinical environments, and other professional facilities requiring dedicated ultra-low temperature storage close to the point of use.\u003c\/p\u003e\n\u003ch3\u003eCertifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUL certified\u003c\/strong\u003e for applicable United States safety requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ecUL certified\u003c\/strong\u003e for applicable Canadian safety requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCE marked\u003c\/strong\u003e for conformity with applicable European requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe microprocessor controller provides continuous digital temperature monitoring with readings displayed in 0.1°C increments. A direct-cooling, mixed-refrigerant refrigeration system supports operation down to −86°C, while manual defrost, substantial cabinet insulation, and an insulated inner door help reduce heat entry and maintain ultra-low temperature conditions during routine storage.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e50 L ultra-low temperature storage capacity\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdjustable operating range from −40°C to −86°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompact undercounter configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMicroprocessor temperature controller\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDigital display with 0.1°C temperature increments\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDirect-cooling refrigeration system\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMixed-refrigerant system\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManual defrost\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSingle-compressor refrigeration design\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStainless-steel interior\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOne stainless-steel storage shelf\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulated inner door\u003c\/strong\u003e for additional thermal protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSolid insulated exterior door\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eErgonomic door handle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSecure mechanical door lock\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in USB temperature data logger\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocal storage for up to 100,000 temperature records\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRS485 communication interface\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRemote alarm contact\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackup battery for continued local monitoring and alarm operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptional CO₂ backup system\u003c\/strong\u003e for additional sample protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e25 mm access port\u003c\/strong\u003e for an independent probe or compatible monitoring equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCircuit breaker\u003c\/strong\u003e for electrical protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFour heavy-duty casters\u003c\/strong\u003e for positioning and relocation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTemperature Performance\u003c\/h3\u003e\n\u003cp\u003eManufacturer internal testing reports:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePull-down time to −80°C of approximately \u003cstrong\u003e1.63 hours\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTemperature recovery time of approximately \u003cstrong\u003e0.24 hours\u003c\/strong\u003e after the door has been opened for one minute\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCabinet insulation measuring up to approximately \u003cstrong\u003e110 mm\u003c\/strong\u003e, depending on the cabinet surface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures are based on manufacturer internal testing with the freezer set to −80°C and operated at an ambient temperature of 25°C. Actual performance may vary depending on cabinet loading, ambient conditions, installation, ventilation, initial product temperature, power supply, and door-opening frequency.\u003c\/p\u003e\n\u003ch3\u003eComprehensive Alarm Protection\u003c\/h3\u003e\n\u003cp\u003eThe integrated alarm system provides visual and audible notification for conditions including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHigh cabinet temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow cabinet temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh ambient temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh condenser temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow backup-battery level\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTemperature-sensor error\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBackup-battery power-detection failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoor-ajar condition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLocal data-communication failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese alarms help personnel identify temperature excursions, electrical interruptions, open-door conditions, refrigeration-system conditions, and monitoring faults promptly.\u003c\/p\u003e\n\u003ch3\u003eLocal Temperature Data Management\u003c\/h3\u003e\n\u003cp\u003eThe built-in data logger records cabinet temperature locally at ten-minute intervals and can retain up to 100,000 temperature records. Authorized users can export stored records directly through the USB port for documentation, audits, quality-control procedures, and local recordkeeping.\u003c\/p\u003e\n\u003cp\u003eThe RS485 interface and remote alarm contact can connect the freezer to compatible on-site alarm panels, monitoring equipment, or building-management systems without requiring an internet connection.\u003c\/p\u003e\n\u003ch3\u003ePrivacy-Focused Offline Operation\u003c\/h3\u003e\n\u003cp\u003eInternet connectivity, cloud communication, and external manufacturer-server data collection are disabled to support institutional privacy, cybersecurity, and data-governance requirements.\u003c\/p\u003e\n\u003cp\u003eTemperature records remain stored locally within the freezer and can be accessed or exported directly through the built-in USB data logger. RS485 communication and remote alarm-contact functionality remain available for compatible on-site systems.\u003c\/p\u003e\n\u003ch3\u003eDesigned for Space-Conscious Facilities\u003c\/h3\u003e\n\u003cp\u003eThe DW-HL50 provides true −86°C storage capability in a compact cabinet measuring approximately 757 mm high. Its undercounter format allows laboratories to place dedicated ultra-low temperature storage near workstations, testing areas, or frequently accessed sample collections without installing a full-height ULT freezer.\u003c\/p\u003e\n\u003cp\u003eThe insulated inner door helps reduce heat entry when the exterior door is opened, while the stainless-steel interior, secure lock, local data logger, backup battery, comprehensive alarms, mixed-refrigerant refrigeration system, and optional CO₂ backup system support professional long-term sample-storage workflows.\u003c\/p\u003e\n\u003ch3\u003eMain Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e DW-HL50\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProduct type:\u003c\/strong\u003e Undercounter ultra-low temperature freezer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCapacity:\u003c\/strong\u003e 50 L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature range:\u003c\/strong\u003e −40°C to −86°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling performance:\u003c\/strong\u003e −86°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended ambient temperature:\u003c\/strong\u003e 16°C to 32°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClimate class:\u003c\/strong\u003e N\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eController:\u003c\/strong\u003e Microprocessor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay:\u003c\/strong\u003e Digital temperature display\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay resolution:\u003c\/strong\u003e 0.1°C increments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling method:\u003c\/strong\u003e Direct cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDefrost method:\u003c\/strong\u003e Manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompressor:\u003c\/strong\u003e One\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e Mixed refrigerant\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulation thickness:\u003c\/strong\u003e Approximately 76 mm at the door and approximately 110–111 mm at the side walls and rear\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExterior material:\u003c\/strong\u003e Cold-rolled steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterior material:\u003c\/strong\u003e Stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStorage configuration:\u003c\/strong\u003e One stainless-steel shelf\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInner-door configuration:\u003c\/strong\u003e Insulated inner door\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccess port:\u003c\/strong\u003e One, 25 mm in diameter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMobility:\u003c\/strong\u003e Four heavy-duty casters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData-recording interval:\u003c\/strong\u003e Every 10 minutes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData-storage capacity:\u003c\/strong\u003e Up to 100,000 records\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData export:\u003c\/strong\u003e USB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication interfaces:\u003c\/strong\u003e RS485 and remote alarm contact\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackup battery:\u003c\/strong\u003e Included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCO₂ backup system:\u003c\/strong\u003e Optional\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInternal dimensions, W × D × H:\u003c\/strong\u003e 305 × 425 × 430 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExternal dimensions, W × D × H:\u003c\/strong\u003e 951 × 700 × 757 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePackaged dimensions, W × D × H:\u003c\/strong\u003e 1,045 × 770 × 932 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet weight, 110 V version:\u003c\/strong\u003e 96 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight, 110 V version:\u003c\/strong\u003e 116 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNorth American electrical supply:\u003c\/strong\u003e 110 V, 60 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated current at 110 V:\u003c\/strong\u003e 10 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zhongke Meiling Cryogenics Co., Ltd","offers":[{"title":"Default Title","offer_id":48693559263464,"sku":null,"price":7999.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/4165\/3736\/files\/ML9041312_ML9048659_ML9048686_ML9047732_-DW-HL50_dfe298e6-265b-476f-8984-d59d91d10a7a.png?v=1782756630"},{"product_id":"meling-biomedical-dw-hl110v-40-c-to-86-c-undercounter-ultra-low-temperature-freezer-110-l","title":"Meling Biomedical DW-HL110V −40°C to −86°C Undercounter Ultra-Low Temperature Freezer 110 L","description":"\u003ch1\u003eMeling Biomedical DW-HL110V −40°C to −86°C Undercounter Ultra-Low Temperature Freezer 110 L\u003c\/h1\u003e\n\u003cp\u003eThe Meling Biomedical DW-HL110V is a 110 L undercounter ultra-low temperature freezer designed for long-term storage of temperature-sensitive biological materials between −40°C and −86°C. Its compact horizontal cabinet combines inverter-driven refrigeration, a 10.1-inch intelligent touchscreen, integrated local temperature recording, comprehensive alarm protection, and organized storage for up to approximately 9,000 cryogenic tubes. It is suitable for laboratories, research facilities, biobanks, clinical environments, and other professional facilities requiring dedicated ultra-low temperature storage near the point of use.\u003c\/p\u003e\n\u003ch3\u003eCertifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUL certified\u003c\/strong\u003e for applicable United States safety requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ecUL certified\u003c\/strong\u003e for applicable Canadian safety requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe microprocessor controller and 10.1-inch HD touchscreen provide clear access to temperature readings, system conditions, alarms, and operating information. The inverter-driven compressor adjusts refrigeration output according to cooling demand, while the direct-cooling system, manual-defrost design, hydrocarbon refrigerant, and substantial cabinet insulation support reliable operation down to −86°C.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e110 L \/ 3.88 cu. ft. ultra-low temperature storage capacity\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdjustable operating range from −40°C to −86°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompact undercounter configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInverter-driven compressor technology\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e10.1-inch HD intelligent touchscreen\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMicroprocessor temperature controller\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDirect-cooling refrigeration system\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManual defrost\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmentally responsible hydrocarbon refrigerant\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStorage capacity for up to approximately 9,000 cryogenic tubes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOne stainless-steel storage shelf\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGalvanized-sheet interior\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptional stainless-steel interior configuration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSolid insulated exterior door\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulated inner-door system\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eErgonomic door handle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSecure mechanical door lock\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in USB temperature data logger\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature recording every five minutes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocal record retention for up to ten years\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRS485 communication interface\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRemote alarm contact\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackup battery for continued local monitoring and alarm operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e25 mm access port\u003c\/strong\u003e for an independent probe or compatible monitoring equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFour heavy-duty casters\u003c\/strong\u003e, including two braking casters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCircuit breaker\u003c\/strong\u003e for electrical protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTemperature Performance\u003c\/h3\u003e\n\u003cp\u003eManufacturer prototype testing reports:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTemperature fluctuation of approximately \u003cstrong\u003e1.5°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDaily energy consumption of approximately \u003cstrong\u003e4.48 kWh\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCooling time to −80°C of approximately \u003cstrong\u003e100 minutes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures are based on manufacturer internal prototype testing with the freezer set to −80°C and operated at an ambient temperature of 25°C. Actual performance may vary between units and depending on cabinet loading, ambient conditions, ventilation, installation, initial product temperature, voltage conditions, and door-opening frequency.\u003c\/p\u003e\n\u003ch3\u003eComprehensive Alarm Protection\u003c\/h3\u003e\n\u003cp\u003eThe integrated alarm system provides visual and audible notification for conditions including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHigh cabinet temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow cabinet temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh ambient temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHot condenser condition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh refrigeration-system pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow backup-battery level\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBackup-power detection failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTemperature-sensor error\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoor-ajar condition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLocal data-communication failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese alarms help personnel identify temperature excursions, power interruptions, refrigeration-system conditions, open-door events, and monitoring faults promptly.\u003c\/p\u003e\n\u003ch3\u003eLocal Temperature Data Management\u003c\/h3\u003e\n\u003cp\u003eThe built-in data logger records cabinet temperature locally at five-minute intervals and supports retention of up to ten years of historical records. Authorized users can export stored temperature data directly through the USB port for audits, documentation, quality-control procedures, and local recordkeeping.\u003c\/p\u003e\n\u003cp\u003eThe RS485 interface and remote alarm contact can connect the freezer to compatible on-site alarm panels, monitoring equipment, or building-management systems without requiring an internet connection.\u003c\/p\u003e\n\u003ch3\u003ePrivacy-Focused Offline Operation\u003c\/h3\u003e\n\u003cp\u003eInternet connectivity, cloud communication, and external manufacturer-server data collection are disabled to support institutional privacy, cybersecurity, and data-governance requirements.\u003c\/p\u003e\n\u003cp\u003eTemperature and alarm records remain stored locally within the freezer and can be accessed or exported directly through the built-in USB data logger. RS485 communication and remote alarm-contact functionality remain available for compatible on-site systems.\u003c\/p\u003e\n\u003ch3\u003eDesigned for Space-Conscious Facilities\u003c\/h3\u003e\n\u003cp\u003eThe DW-HL110V provides 110 L of −86°C storage in a cabinet measuring approximately 815 mm high. Its undercounter configuration allows facilities to position dedicated ultra-low temperature storage near laboratory workstations, processing areas, or frequently accessed sample collections.\u003c\/p\u003e\n\u003cp\u003eThe inverter-driven refrigeration system, touchscreen control interface, organized cryotube capacity, local data logger, backup battery, comprehensive alarms, access control, and heavy-duty casters support professional long-term biological-sample storage without requiring a full-height upright ULT freezer.\u003c\/p\u003e\n\u003ch3\u003eMain Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e DW-HL110V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProduct type:\u003c\/strong\u003e Undercounter ultra-low temperature freezer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCapacity:\u003c\/strong\u003e 110 L \/ 3.88 cu. ft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate cryotube capacity:\u003c\/strong\u003e Up to 9,000 tubes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature range:\u003c\/strong\u003e −40°C to −86°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling performance:\u003c\/strong\u003e −86°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended ambient temperature:\u003c\/strong\u003e 16°C to 32°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClimate class:\u003c\/strong\u003e N\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eController:\u003c\/strong\u003e Microprocessor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay:\u003c\/strong\u003e 10.1-inch HD intelligent touchscreen\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompressor:\u003c\/strong\u003e One inverter-driven compressor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling method:\u003c\/strong\u003e Direct cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDefrost method:\u003c\/strong\u003e Manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e Hydrocarbon refrigerant\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulation thickness:\u003c\/strong\u003e Approximately 85 to 110 mm, depending on cabinet section\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExterior material:\u003c\/strong\u003e Cold-rolled steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterior material:\u003c\/strong\u003e Galvanized sheet; stainless steel optional\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStorage configuration:\u003c\/strong\u003e One stainless-steel shelf\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoor configuration:\u003c\/strong\u003e Solid exterior door with insulated inner-door system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccess port:\u003c\/strong\u003e One, 25 mm in diameter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMobility:\u003c\/strong\u003e Four casters, including two braking casters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData-recording interval:\u003c\/strong\u003e Every five minutes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocal record retention:\u003c\/strong\u003e Up to ten years\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData export:\u003c\/strong\u003e USB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication interfaces:\u003c\/strong\u003e RS485 and remote alarm contact\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackup battery:\u003c\/strong\u003e Included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInternal dimensions, W × D × H:\u003c\/strong\u003e 435 × 426 × 582 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExternal dimensions, W × D × H:\u003c\/strong\u003e 978 × 662 × 815 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePackaged dimensions, W × D × H:\u003c\/strong\u003e 1,060 × 740 × 1,000 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet weight:\u003c\/strong\u003e 119 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight:\u003c\/strong\u003e 138 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNorth American electrical supply:\u003c\/strong\u003e 110–120 V, 50\/60 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated current:\u003c\/strong\u003e 9.4 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zhongke Meiling Cryogenics Co., Ltd","offers":[{"title":"Default Title","offer_id":48693606449384,"sku":null,"price":11999.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/4165\/3736\/files\/DW-HL110V_door_open.png?v=1782762797"},{"product_id":"meling-biomedical-dw-hl530-40-c-to-86-c-dual-cooling-upright-ultra-low-temperature-freezer-530-l","title":"Meling Biomedical DW-HL530 −40°C to −86°C Dual-Cooling Upright Ultra-Low Temperature Freezer 530 L","description":"\u003ch1\u003eMeling Biomedical DW-HL530 −40°C to −86°C Dual-Cooling Upright Ultra-Low Temperature Freezer 530 L\u003c\/h1\u003e\n\u003cp\u003eThe Meling Biomedical DW-HL530 is a 530 L upright ultra-low temperature freezer engineered for long-term storage of temperature-sensitive biological materials between −40°C and −86°C. Its dual-cooling architecture uses two independent inverter-driven refrigeration systems to provide an additional level of sample protection. The freezer also incorporates a 10-inch intelligent touchscreen, stainless-steel interior, vacuum-insulated cabinet construction, local temperature data logging, biometric access control, and comprehensive alarm protection for research laboratories, biobanks, hospitals, pharmaceutical facilities, and other professional environments.\u003c\/p\u003e\n\u003ch3 data-section-id=\"nyesct\" data-start=\"180\" data-end=\"198\" class=\"PDq2pG_selectionAnchorContainer\"\u003eCertifications\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul data-start=\"200\" data-end=\"453\"\u003e\n\u003cli data-section-id=\"15kgg9e\" data-start=\"200\" data-end=\"321\"\u003e\n\u003cstrong data-start=\"202\" data-end=\"242\"\u003eClass II medical-device CE certified\u003c\/strong\u003e, with conformity to applicable \u003cstrong data-start=\"274\" data-end=\"321\"\u003eIEC\/EN 61010 electrical safety requirements\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t5m5eb\" data-start=\"322\" data-end=\"389\"\u003e\n\u003cstrong data-start=\"324\" data-end=\"340\"\u003eUL certified\u003c\/strong\u003e for applicable United States safety requirements\u003c\/li\u003e\n\u003cli data-section-id=\"1rmy89o\" data-start=\"390\" data-end=\"453\"\u003e\n\u003cstrong data-start=\"392\" data-end=\"409\"\u003ecUL certified\u003c\/strong\u003e for applicable Canadian safety requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe microprocessor controller and 10-inch HD intelligent touchscreen provide clear access to cabinet temperature, operating status, alarm conditions, and stored records. Two independent inverter compressors adjust refrigeration output according to demand, while direct cooling, hydrocarbon refrigerants, vacuum-insulated panels, and substantial cabinet insulation support controlled operation down to −86°C.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e530 L \/ 18.7 cu. ft. storage capacity\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdjustable operating range from −40°C to −86°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual independent refrigeration systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTwo inverter-driven compressors\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRedundant cooling architecture\u003c\/strong\u003e for enhanced protection of high-value materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e10-inch HD intelligent touchscreen\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMicroprocessor temperature controller\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDirect-cooling refrigeration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManual defrost\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHydrocarbon refrigerants\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVacuum-insulated panel construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStainless-steel interior\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThree stainless-steel shelves\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulated inner doors\u003c\/strong\u003e to reduce heat entry during routine access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eErgonomic door handle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCard and fingerprint access control\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHeated vacuum-relief port\u003c\/strong\u003e to assist with door reopening\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in USB temperature data logger\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature recording every five minutes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocal record retention for up to ten years\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRS485 communication interface\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRemote alarm contact\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackup battery for continued local monitoring and alarm operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTwo 25 mm access ports\u003c\/strong\u003e for independent probes or compatible monitoring equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCircuit breaker\u003c\/strong\u003e for electrical protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFour heavy-duty casters and two leveling feet\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDual-System Sample Protection\u003c\/h3\u003e\n\u003cp\u003eThe DW-HL530 is built around two independent refrigeration systems. The manufacturer states that if one system becomes unavailable, the remaining refrigeration system can continue maintaining ultra-low cabinet conditions at approximately −80°C under specified operating conditions.\u003c\/p\u003e\n\u003cp\u003eThis redundant design is intended to provide additional response time and sample protection compared with a conventional single-system freezer. Independent facility monitoring and an established emergency-transfer plan should still be maintained for irreplaceable or high-value materials.\u003c\/p\u003e\n\u003ch3\u003eTemperature Performance\u003c\/h3\u003e\n\u003cp\u003eManufacturer internal testing reports:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTemperature recovery of approximately \u003cstrong\u003e24.5 minutes\u003c\/strong\u003e after the door has been opened for one minute\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePull-down time to −80°C of approximately \u003cstrong\u003e185 minutes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDaily energy consumption of approximately \u003cstrong\u003e7.3 kWh\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures are based on manufacturer internal testing with the freezer set to −80°C and operated at an ambient temperature of 25°C. Actual performance may vary depending on cabinet loading, ambient conditions, installation, ventilation, voltage, initial product temperature, door-opening frequency, and individual unit configuration.\u003c\/p\u003e\n\u003ch3\u003eComprehensive Alarm Protection\u003c\/h3\u003e\n\u003cp\u003eThe integrated alarm system provides visual and audible notification for conditions including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHigh cabinet temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow cabinet temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh ambient temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTemperature-sensor failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow backup-battery level\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAmbient-temperature sensor failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBackup-battery power-check failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLocal data-communication failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoor-opening timeout\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA\/B refrigeration-system fault\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh refrigeration-system pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese alarms help personnel identify temperature excursions, electrical interruptions, refrigeration faults, prolonged door openings, and monitoring-system conditions promptly.\u003c\/p\u003e\n\u003ch3\u003eLocal Temperature Data Management\u003c\/h3\u003e\n\u003cp\u003eThe integrated data logger records cabinet temperature locally at five-minute intervals and supports retention of up to ten years of historical records. Authorized users can export stored information directly through the USB port for audits, quality-control procedures, documentation, and local recordkeeping.\u003c\/p\u003e\n\u003cp\u003eThe RS485 interface and remote alarm contact can connect the freezer to compatible on-site monitoring equipment, alarm panels, or building-management systems without requiring an internet connection.\u003c\/p\u003e\n\u003ch3\u003ePrivacy-Focused Offline Operation\u003c\/h3\u003e\n\u003cp\u003eInternet connectivity, cloud communication, and external manufacturer-server data collection are disabled to support institutional privacy, cybersecurity, and data-governance requirements.\u003c\/p\u003e\n\u003cp\u003eTemperature and alarm records remain stored locally within the freezer and can be accessed or exported through the integrated USB data logger. RS485 communication and remote alarm-contact functionality remain available for compatible on-site systems.\u003c\/p\u003e\n\u003ch3\u003eDesigned for High-Volume, High-Value Storage\u003c\/h3\u003e\n\u003cp\u003eThe DW-HL530 accommodates a specified configuration of up to sixteen freezer racks and approximately 400 standard storage boxes. Its three-shelf stainless-steel interior and insulated inner-door arrangement divide the cabinet into organized storage zones while reducing exposure of materials that are not being accessed.\u003c\/p\u003e\n\u003cp\u003eThe combination of dual independent cooling systems, touchscreen control, biometric access, local temperature documentation, vacuum insulation, comprehensive alarms, and secure cabinet construction makes the freezer suitable for professional facilities managing valuable or difficult-to-replace biological collections.\u003c\/p\u003e\n\u003ch3\u003eMain Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e DW-HL530\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProduct type:\u003c\/strong\u003e Dual-cooling upright ultra-low temperature freezer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCapacity:\u003c\/strong\u003e 530 L \/ 18.7 cu. ft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature range:\u003c\/strong\u003e −40°C to −86°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling performance:\u003c\/strong\u003e −86°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended ambient temperature:\u003c\/strong\u003e 16°C to 32°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClimate class:\u003c\/strong\u003e N\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eController:\u003c\/strong\u003e Microprocessor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay:\u003c\/strong\u003e 10-inch HD intelligent touchscreen\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompressors:\u003c\/strong\u003e Two inverter-driven compressors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRefrigeration systems:\u003c\/strong\u003e Two independent systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling method:\u003c\/strong\u003e Direct cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDefrost method:\u003c\/strong\u003e Manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e Hydrocarbon refrigerants\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulation:\u003c\/strong\u003e Vacuum-insulated panels with supplementary cabinet insulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulation thickness:\u003c\/strong\u003e Approximately 117 mm at the door and 130 mm at the side walls and rear\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExterior material:\u003c\/strong\u003e Cold-rolled steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterior material:\u003c\/strong\u003e Stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShelves:\u003c\/strong\u003e Three stainless-steel shelves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInner-door configuration:\u003c\/strong\u003e Insulated inner doors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccess control:\u003c\/strong\u003e Card and fingerprint access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccess ports:\u003c\/strong\u003e Two, each 25 mm in diameter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMobility:\u003c\/strong\u003e Four casters and two leveling feet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData-recording interval:\u003c\/strong\u003e Every five minutes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocal record retention:\u003c\/strong\u003e Up to ten years\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData export:\u003c\/strong\u003e USB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication interfaces:\u003c\/strong\u003e RS485 and remote alarm contact\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackup battery:\u003c\/strong\u003e Included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecified rack model:\u003c\/strong\u003e ZKL304-552B-CT\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecified rack capacity:\u003c\/strong\u003e 16 racks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecified box capacity:\u003c\/strong\u003e Up to 400 boxes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInternal dimensions, W × D × H:\u003c\/strong\u003e 585 × 696 × 1,266 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExternal dimensions, W × D × H:\u003c\/strong\u003e 930 × 1,041 × 1,947 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePackaged dimensions, W × D × H:\u003c\/strong\u003e 1,005 × 1,160 × 2,132 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet weight:\u003c\/strong\u003e 276 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight with paper packaging:\u003c\/strong\u003e 332 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight with wooden packaging:\u003c\/strong\u003e 365 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical supply:\u003c\/strong\u003e 110–230 V, 50\/60 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated current:\u003c\/strong\u003e 13.42 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zhongke Meiling Cryogenics Co., Ltd","offers":[{"title":"Default Title","offer_id":48693672444136,"sku":null,"price":19999.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/4165\/3736\/files\/DW-HL530_2.png?v=1782764977"},{"product_id":"meling-biomedical-dw-hl780-40-c-to-86-c-dual-cooling-upright-ultra-low-temperature-freezer-780-l","title":"Meling Biomedical DW-HL780 −40°C to −86°C Dual-Cooling Upright Ultra-Low Temperature Freezer 780 L","description":"\u003ch1\u003eMeling Biomedical DW-HL780 −40°C to −86°C Dual-Cooling Upright Ultra-Low Temperature Freezer 780 L\u003c\/h1\u003e\n\u003cp\u003eThe Meling Biomedical DW-HL780 is a 780 L upright ultra-low temperature freezer engineered for long-term storage of temperature-sensitive biological materials between −40°C and −86°C. Its dual-cooling architecture uses two independent inverter-driven refrigeration systems to provide an additional level of protection for critical sample collections. A 10-inch intelligent touchscreen, stainless-steel interior, vacuum-insulated cabinet construction, biometric access control, local temperature data logging, and comprehensive alarm protection support demanding workflows in biobanks, hospitals, pharmaceutical facilities, research laboratories, and other professional environments.\u003c\/p\u003e\n\u003ch3\u003eCertifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCE marked\u003c\/strong\u003e for applicable European requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMDR certified\u003c\/strong\u003e for applicable European medical-device requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCE 61010 compliant\u003c\/strong\u003e — conforms to IEC\/EN 61010 safety requirements for electrical equipment used in laboratory, measurement, and control applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUL certified\u003c\/strong\u003e for applicable United States safety requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ecUL certified\u003c\/strong\u003e for applicable Canadian safety requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe microprocessor controller and 10-inch HD intelligent touchscreen provide clear access to cabinet temperature, system status, alarm conditions, and stored records. Two independent inverter-driven compressors regulate refrigeration output according to system demand, while direct cooling, hydrocarbon refrigerants, vacuum-insulated panels, and substantial cabinet insulation support controlled operation down to −86°C.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e780 L \/ 27.5 cu. ft. storage capacity\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdjustable operating range from −40°C to −86°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTwo independent refrigeration systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTwo inverter-driven compressors\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRedundant dual-cooling architecture\u003c\/strong\u003e for enhanced sample protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e10-inch HD intelligent touchscreen\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMicroprocessor temperature controller\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDirect-cooling refrigeration system\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManual defrost\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHydrocarbon refrigerants\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVacuum-insulated panel construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStainless-steel interior\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThree stainless-steel shelves\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulated inner doors\u003c\/strong\u003e to reduce heat entry during routine access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eErgonomic door handle\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCard and fingerprint access control\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHeated vacuum-relief port\u003c\/strong\u003e to assist with door reopening\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in USB temperature data logger\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature recording every five minutes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocal record retention for up to ten years\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRS485 communication interface\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRemote alarm contact\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackup battery for continued local monitoring and alarm operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThree 25 mm access ports\u003c\/strong\u003e for independent probes or compatible monitoring equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCircuit breaker\u003c\/strong\u003e for electrical protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFour heavy-duty casters and two leveling feet\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecified capacity for up to 24 freezer racks and 600 standard storage boxes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTemperature Performance\u003c\/h3\u003e\n\u003cp\u003eThe DW-HL780 is built around two independent refrigeration systems. The manufacturer states that if one refrigeration system becomes unavailable, the remaining system can continue maintaining the cabinet at approximately −80°C under specified operating conditions.\u003c\/p\u003e\n\u003cp\u003eManufacturer internal testing also reports:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTemperature recovery of approximately \u003cstrong\u003e40 minutes\u003c\/strong\u003e after the door has been opened for one minute\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePull-down time to −80°C of approximately \u003cstrong\u003e280 minutes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDaily energy consumption of approximately \u003cstrong\u003e8.5 kWh\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures are based on manufacturer internal testing with the freezer set to −80°C and operated at an ambient temperature of 25°C. Actual performance may vary depending on cabinet loading, ambient conditions, installation, ventilation, voltage, initial product temperature, door-opening frequency, and individual unit configuration.\u003c\/p\u003e\n\u003cp\u003eThe redundant refrigeration design provides additional response time and sample protection compared with a conventional single-system freezer. Independent facility monitoring and an established emergency-transfer plan should still be maintained for critical or irreplaceable materials.\u003c\/p\u003e\n\u003ch3\u003eComprehensive Alarm Protection\u003c\/h3\u003e\n\u003cp\u003eThe integrated alarm system provides visual and audible notification for conditions including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHigh cabinet temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow cabinet temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh ambient temperature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLow backup-battery level\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTemperature-sensor error\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBackup-battery power-detection failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLocal data-communication failure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoor-ajar condition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA\/B refrigeration-system fault\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese alarms help personnel identify temperature excursions, power interruptions, prolonged door openings, refrigeration-system faults, and monitoring-system conditions promptly.\u003c\/p\u003e\n\u003ch3\u003eLocal Temperature Data Management\u003c\/h3\u003e\n\u003cp\u003eThe integrated data logger records cabinet temperature locally at five-minute intervals and supports retention of up to ten years of historical records. Authorized users can export stored information directly through the USB port for audits, quality-control procedures, documentation, and local recordkeeping.\u003c\/p\u003e\n\u003cp\u003eThe RS485 interface and remote alarm contact can connect the freezer to compatible on-site monitoring equipment, alarm panels, or building-management systems without requiring an internet connection.\u003c\/p\u003e\n\u003ch3\u003ePrivacy-Focused Offline Operation\u003c\/h3\u003e\n\u003cp\u003eInternet connectivity, cloud communication, and external manufacturer-server data collection are disabled to support institutional privacy, cybersecurity, and data-governance requirements.\u003c\/p\u003e\n\u003cp\u003eTemperature and alarm records remain stored locally within the freezer and can be accessed or exported directly through the integrated USB data logger. RS485 communication and remote alarm-contact functionality remain available for compatible on-site systems.\u003c\/p\u003e\n\u003ch3\u003eDesigned for High-Volume, High-Value Storage\u003c\/h3\u003e\n\u003cp\u003eThe DW-HL780 accommodates a specified configuration of up to 24 freezer racks and approximately 600 standard storage boxes. Its three-shelf stainless-steel interior and insulated inner-door arrangement divide the cabinet into organized storage zones while reducing exposure of materials that are not being accessed.\u003c\/p\u003e\n\u003cp\u003eCard and fingerprint access control help restrict cabinet access to authorized personnel. The combination of two independent cooling systems, inverter-driven compressors, touchscreen control, local temperature documentation, vacuum insulation, comprehensive alarms, and secure cabinet construction makes the freezer suitable for facilities managing large, valuable, or difficult-to-replace biological collections.\u003c\/p\u003e\n\u003ch3\u003eMain Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e DW-HL780\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProduct type:\u003c\/strong\u003e Dual-cooling upright ultra-low temperature freezer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCapacity:\u003c\/strong\u003e 780 L \/ 27.5 cu. ft.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature range:\u003c\/strong\u003e −40°C to −86°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling performance:\u003c\/strong\u003e −86°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended ambient temperature:\u003c\/strong\u003e 16°C to 32°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClimate class:\u003c\/strong\u003e N\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eController:\u003c\/strong\u003e Microprocessor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay:\u003c\/strong\u003e 10-inch HD intelligent touchscreen\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompressors:\u003c\/strong\u003e Two inverter-driven compressors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRefrigeration systems:\u003c\/strong\u003e Two independent systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCooling method:\u003c\/strong\u003e Direct cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDefrost method:\u003c\/strong\u003e Manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e Hydrocarbon refrigerants\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulation:\u003c\/strong\u003e Vacuum-insulated panels with supplementary cabinet insulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInsulation thickness:\u003c\/strong\u003e Approximately 100 mm at the door and 130 mm at the side walls and rear\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExterior material:\u003c\/strong\u003e Cold-rolled steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInterior material:\u003c\/strong\u003e Stainless steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShelves:\u003c\/strong\u003e Three stainless-steel shelves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInner-door configuration:\u003c\/strong\u003e Insulated inner doors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccess control:\u003c\/strong\u003e Card and fingerprint access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVacuum relief:\u003c\/strong\u003e Heated vacuum-relief port\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAccess ports:\u003c\/strong\u003e Three, each 25 mm in diameter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMobility:\u003c\/strong\u003e Four heavy-duty casters and two leveling feet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData-recording interval:\u003c\/strong\u003e Every five minutes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLocal record retention:\u003c\/strong\u003e Up to ten years\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData export:\u003c\/strong\u003e USB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication interfaces:\u003c\/strong\u003e RS485 and remote alarm contact\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackup battery:\u003c\/strong\u003e Included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecified rack model:\u003c\/strong\u003e ZKL304-552B-CT\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecified rack capacity:\u003c\/strong\u003e 24 racks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpecified box capacity:\u003c\/strong\u003e Up to 600 boxes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInternal dimensions, W × D × H:\u003c\/strong\u003e 865 × 696 × 1,286 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExternal dimensions, W × D × H:\u003c\/strong\u003e 1,205 × 1,025 × 1,955 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePackaged dimensions, W × D × H:\u003c\/strong\u003e 1,285 × 1,145 × 2,127 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNet weight:\u003c\/strong\u003e 331 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight with paper packaging:\u003c\/strong\u003e 393 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight with wooden packaging:\u003c\/strong\u003e 425 kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical supply:\u003c\/strong\u003e 110–230 V, 50\/60 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRated current:\u003c\/strong\u003e 14.83 A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zhongke Meiling Cryogenics Co., Ltd","offers":[{"title":"Default Title","offer_id":48694862676200,"sku":null,"price":22999.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/4165\/3736\/files\/DW-HL780_1.png?v=1782838032"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/4165\/3736\/collections\/DW-HL780_1_91d20c11-3a71-4978-a113-14595ea1d04a.png?v=1782867585","url":"https:\/\/solutioninstruments.com\/collections\/40-c-to-86-c-ultra-low-temperature-freezers.oembed","provider":"Solution Instruments","version":"1.0","type":"link"}