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Ultra-Low Temperature Freezers


Buy LSRC85 -3.5 Ultra Low Freezer Online at best price

High-Precision Temperature Control System

The high-precision computerized temperature control system ensures an adjustable temperature within a range from -40°C to -86°C inside the cabinet, and the high-definition digital temperature display has a display accuracy of 0.1 ℃.

Visual & Audio Alarm System

Includes visual and audible alarms for high/low temperature, power failure, low battery, door ajar, high ambient temperature, and communication failure.

Powerful Refrigeration System

The LSR85-1.75 ultra-low freezer is equipped with a high-efficiency compressor and EBM fan to save energy and be environmentally friendly. The large finned condenser delivers efficient and effective heat dissipation to ensure consistent ULT temperatures.

Effective Thermal Insulation

This under-counter ultra-low freezer’s door is equipped with vacuum insulation with a seal. The six sides of the cabinet are made from high-performance vacuum insulation materials, which can provide effective thermal insulation.

Ask About Rack Solutions For 2″ Or 3″ Boxes.


High-Precision Temperature Control

  • Digital temperature display simultaneously displays the chamber temperature, power supply voltage, ambient temperature and other parameters.
  • The high-precision microcomputer temperature control system and platinum resistor temperature sensors enable users to accurately control the internal temperature of the cabinet within a range from -40°C to -86°C.

Refrigeration System

  • The compressor and EBM fan are energy-saving and highly efficient.
  • The large finned condenser with a 2mm space between fins provides effective heat dissipation.
  • Comes standard with VIP board for high-efficiency cooling performance.
  • Door with hot gas pipe surrounding for ease of defrosting.

Thermal Insulation System

  • The dual-layer insulated foamed door with double seal and the outdoor insulation design prevents loss of cooling capacity effectively.
  • The six sides of the cabinet are made from a high-performance vacuum insulation material which greatly improves thermal insulation performance.

Security System

  • Audible & visual alarm system includes: high/low temperature, sensor failure, door open, and power failure alarms
  • The turn-on delay and stopping interval protection can ensure reliable operation
  • The keyboard lock and password protection can prevent any adjustment of operational parameters without permission


  • The door includes an assisting handle for easy operation.
  • Door handle with lock for security of samples.
  • Galvanized steel sheet interior, low temperature resistance anti-corrosion for long service life and easy cleaning;
  • 4 Direction casters for easy movement.

Model LSRP85-3.5

  • Cabinet TypeUpright
  • Capacity (Cu.Ft)3.5
  • Internal Size (WxDxH) inches17.7×17.2×20.2
  • External Size (WxDxH) inches42×29.2×32.2
  • Package Size(WxDxH) inches33x34x39
  • NW/GW(Lbs)320/322


  • Temperature Range (C°)-40º~ -86º
  • Ambient Temperature16º- 32º
  • ControllerMicroprocessor
  • DisplayDigital Display


  • External MaterialSteel plates with spraying
  • Inner Material304 stainless steel
  • External LockYes
  • Door Lock With KeyYes
  • Access Port 1pc. Ø 40 mm
  • Casters 4
  • Data Logging/Interval/Recording USB/Record every 10 minute / 2 years
  • Backup Battery Yes


  • Compressor Single
  • Cooling Method Direct Cooling
  • Defrost Mode Manual
  • Refrigerant Mixed Gas
  • Insulation(mm) 115


  • Power Supply(V/HZ)110/60
  • Rated Current(A)12.3


  • TemperatureHigh/Low Temperature, High Ambient Temperature
  • ElectricalLow Battery
  • SystemSensor error, Condenser cooling failure, Door ajar, Recorder error, Main board communication error

Ultra Low Temperature Freezers