Witeg – Smart Upright-Type Laboratory Freezer (SWUF-D Series)

Ideal for:

  • ultra-low refrigeration
  • especially for vaccines

Safety mechanism:

  • push alarm service to your smartphone
  • sensor error detection
  • door locking system, door open error
  • door ajar and power failure alarm
  • standard warning and alarm functions


Smart-Lab™ controller with 7″ touch screen TFT LCD:

  • WiRe™ app service, remote control system
  • variable program settings
  • self-diagnosis function and interactive temperature graph
  • automatic data recording and password protection
  • data transfer to PC by USB memory
  • digital calibration (offset function)
  • min-/max-temperature memory & program function
  • push-alarm service to smartphone or tablet PC

DuoFreeze SmartLab with 2 compressors:
If one system fails, the other still cools down to -80°C

RoHS certified:

No hazardous substances (Pb, Cd, Hg, Hex-Cr, PBB, PBDE) are used in all UniFreezeTM and DuoFreezeTM freezers!

Natural refrigerants:

Instead of using HFC refrigerants (R-134a, R-404A, R-507) all UniFreezeTM and DuoFreezeTM models have a specially mixed refrigerant mostly consisting of natural materials.

Power consumption:

Up to 39% lower than the average competitor.

Devices with 230 V power supply can also be supplied with 120 V on request.

Witeg – Smart Upright-Type Laboratory Freezer (SWUF-D Series)

Key Features

  • CFC free refrigerant (R-404A)
  • DuoFreeze™ with 2 compressors: when one system fails, the other still cools down to -80°C
  • automatic vacuum breaker – easy to re-open door
  • external temperature sensor hole
  • block condenser removes filter and causes of related failure
  • filter-free mechanism lowers compressor heat
  • easy maintenance and improved performance
  • high-quality insulation panel and inner doors ensure defrosting around outer surface
  • easy monitoring and control – eye level controller
  • stainless steel interior, powder-coated steel body, and inner door
  • 3x stainless steel shelves to separate chamber into 4 sub-chambers included
  • castors for easy movement
  • UL/CUL, CE and RoHS certified and unique serial number for tracing
  • SWUF-D500 model is GMP certified


Model SWUF-D300 SWUF-D400 SWUF-D500 SWUF-D700
Capacity 308 l 393 l 503 l 714 l
Temperature range & sensor -95°C to -65°C -90°C to -65°C
at 30°C room temperature & 30% humidity, PT 100 sensor
Compressor Hermetic type
Condenser type block condenser, no pin, filter-free
Max. rack quantity 12 pcs. of 15 (3×5) placed racks (RFU3040) 16 pcs. of 15 (3×5) placed racks (RFU3040) 16 pcs. of 20 (4×5) placed racks (RFU50) 24 pcs. of 20 (4×5) placed racks (RFU50)
Internal chamber dimensions (W x D x H) 470 x 500 x 1310 mm 600 x 500 x 1310 mm 600 x 640 x 1310 mm 880 x 620 x 1310 mm
External chamber dimensions(W x D x H), net weight 710 x 750 x 1900 mm, 220 kg 840 x 750 x 1900 mm, 260 kg 840 x 890 x 1900 mm, 300 kg 1120 x 870 x 1900 mm, 320 kg
Packing size (W x D x H), gross weight 110 x 110 x 222 cm, 300 kg 116 x 116 x 222 cm, 352 kg 116 x 124 x 222 cm, 352 kg 140 x 140 x 221 cm, 442 kg
Power supply 1 Phase AC 120V, 60 Hz or AC 230V, 50/60 Hz
Power consumption dual mode 398 w/h 474 w/h 507 w/h 596 w/h
Power consumption eco mode 352 w/h 373 w/h 458 w/h 503 w/h
Order number 230V DH.SWUF01300 DH.SWUF01400 DH.SWUF01500 DH.SWUF01700
Order number 120V DH.SWUF02300 DH.SWUF02400 DH.SWUF02500 DH.SWUF02700

What’s Included: Freezer SWUF-D, 3 stainless steel shelves, power cable, instruction manual


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