{"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","url":"https:\/\/solutioninstruments.com\/products\/meling-biomedical-dw-hl50-40-c-to-86-c-undercounter-ultra-low-temperature-freezer-50-l","provider":"Solution Instruments","version":"1.0","type":"link"}