National Lab GmbH has its headquarters in the town of Moelln in the state of Schleswig-Holstein and has been a purely German company independent of any corporation since its foundation in the year 1918. Due to the company’s distinct international orientation and its strong reputation in scientific laboratories around the world, it has now become standard practice to pronounce the name in English. The company concentrates on two core fields of expertise: firstly, cooling water and oil recirculating chillers for industrial applications and, secondly, refrigeration and deep-freezing technology on the laboratory scale.

Authorised dealer for:

Worldwide (except the Americas)

Freezer National Lab PMU04 ProfiMaster upright 1.2 cu ft 35L


  • Natural air circulation

  • Operating panel with micro-processor driven temperature controller and digital displays for set value and actual value
    - Alarm device with independent circuit, optical/acoustic
    - No-volt remote alarm contact for connection to an alarm system on the premises
    - RS 485 port
    - 10 mV/K terminal for connection to a National Lab temperature recorder

  • Exterior case contains stainless steel (CNS)

  • Energy saving vacuum insulation

  • Door lockable, door hinges on left 

  • Interior made of stainless steel (CNS) without mounted equipment, making it especially hygienic and easy to clean


Model ProfiMaster PMU0450 PMU0485
Temperature range °C -10/-50 -50/-85
  Other temperature ranges available on request
Content litres (gross) 35 35
Ext. dimensions (WxDxH) mm 580x765x540 580x765x540
Int. dimensions (WxDxH) mm 425x300x280 425x300x280
Weight kg 65 81
Mains connection volts / Hz / Ph 230/50/1 230/50/1
Refrigerant R507 R507/R508-P

Freezers - Ultra-Low Temperature - National Lab

?• Natural air circulation and manual defrost

• Most reliable and less complicated compressor technology from Danfoss
• Electronic control with digital display
• Visual/audible alarm device
• No-volt remote alarm contact for connection to an alarm system on the premises
• Rechargeable battery for full retention of all controller features
• Lockable door, door hinges on right
• Vacuum insulation
• Interior made of stainless steel CNS (hygienic and easy to clean)

Technical Information

Model PLPE0486
Temperature range °C: -40/-80
Content litres litres (gross): 35
Ext.dimensions (WxDxH) mm: 490 x 650 x 670
Int. Dimensions (WxDxH) mm: 330 x 355 x 300
Depth with door opened mm: 1070
Weight kgs: 60
Mains connection volts/Hz/ph: 230/50-60/1
Refrigerant: EP88