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-20°C~-40°C Low Temperature Freezer Medical Freezer DW-FL439

•Strong cooling feature

•Precision temperature control

•Constant temperature

•Energy-saving function

•Human-oriented design


Meling -20°C~-40°C low temperature freezer DW-FL439 is a brand new low temp freezer with strong cooling feature. The high-precision temperature control system enables you to set the temperature in the range of -20°C-40°C freely. And you can fully control the temperature performance and operation status. The medical freezer is designed with Fluorine-free refrigerant, which is environmentally friendly.

Refrigeration System

Fluorine-free refrigerant, international brand compressor, and EBM fan, ensures fast cooling and energy-saving.

Temperature Control System

High-precision microcomputer temperature control system with build-in control/alarm sensors for High/low temperature, ambient temperature and evaporator temperature etc. ensuring the safe and stable running.

Energy Saving and Environmental Protection

Equipped with DC/DC power management module which greatly improved the  energy-saving efficiency; high precision voltage control ensures the stable performance  for the whole machine. Less redundant heat to eliminate the overheating safety hazard.



  Scope of Application

Suitable for use in scientific research, cryogenic test on special materials, blood plasma cryopreservation, low temperature resistance test on biological materials, vaccines, biological  products and military products, etc. Suitable for use in research institutions, the electronic industry, the chemical industry, hospitals, the health,& disease prevention system, laboratories in colleges & universities, military enterprises, etc.


Technical Parameters
Product Name-40℃ Ultra-low temperature freezerModelDW-FL439
Cabinet TypeUprightEffective Capacity439L
External Size (WDH)mm850×740×1935Internal Size(WDH)mm650×548×1304
Door Size (WDH)mm850×90×1478Package Size (WDH)mm981×850×2023
N.W/G.W (Kgs)175/195Input Power (W)403
Voltage220V,50Hz /110V,60Hz / 220V,60Hz
Power Consumption (Kw.h/24hrs)4.5Rated Current (A)2.7
Temp.Range(℃)-20 ~ -40Ambient Temperature(℃)16 ~ 32
Ambient Humidity20%-80%Temp Accuracy0.1℃
DefrostManual defrost
AlarmVisual & Audio
High/low temperature alarm, high ambient  alarm, sensor failure alarm, door open alarm, communication failure alarm, low battery alarm, power  failure alarm
Control SystemHigh precision microcomputer temperature  control system, direct cooling , 1 inch digital temperature display
RefrigerantCFC free, R507/320gRefrigeration SystemScope compressor + Germany EBM fan copper finned condenser
Insulation MaterialCFCFree Polyurethane Foam (thickness: 100mm)Shelves14 ABS drawers
Castors4 castors and 2 leveling feetDoor LockErgonomics padlock design
Access Port1 as standard (diameter:25mm)Pressure Reducing Valve1
USB Port1 as standardtdRS485 and Remote Alarm Port1 as standard
DisplayLEDTemp RecorderStadard USB built-in data logger
Door SealHigh Performance Seal Gasket

Chart RecorderOptionalTemp PrinterOptional



*Note: Continuous innovation of products and continuous improvement of performance. This technical parameter is for reference only.