The MLR-352 Climatic Test Chamber has been recognized as an exceptional unit suitable for a wide range of applications. The wide variety of temperatures, humidity and lighting patterns that are essential in research, environmental studies and testing can now be accurately reproduced and controlled.

The microprocessor P.I.D. and refrigeration capacity control minimizes temperature fluctuations and thereby improves temperature control. This allows precise experiments plus energy and electricity savings.

Programming of temperature, light, and humidity can be used for small plants, environmental tests, algae, drosophila, etc. Easy calibration of temperature and humidity can be calibrated easily through the control panel. Small lightweight, high molecular membrane-type humidity sensor also boasts a high degree of accuracy and reproducibility.

Graphic LCD panel with pop-up menu function on control panel provides visual display of operation and allows intuitive operation.



  • Microprocessor P.I.D. controls temperature and humidity to create the optimum environments for various applications.
  • Programmable temperature (0°C to 50°C), lighting 0 to 20.000 lux) and humidity function (55-90% RH) (MLR-351H only).
  • Easy calibration through controller.
  • Small lightweight, high molecular membrane-type humidity sensor.
  • Programmable Temperature Function can operate 12 step programs.
  • Automatic Data Logging of Operational Data of approximately two weeks (6 minute intervals) can be automatically recorded.
  • Graphic LCD for easy operation.
  • Automatic Data Logging.
  • Programmable Temperature Function.
  • Data logging function


External Dimensions (W x D x H)760 x 700 x 1835 mm
Internal Dimensions (W x D x H)520 x 490 x 1135 mm
Volume294 liters
Net Weight226 kg
Temperature Control Range & Fluctuation0 ~ +50 (lamp off) ±0.3 °C
+10 ~ +50 (lamp on) ±0.3 °C
Temperature Uniformity±1 °C (lamp off) 
±2.5 °C (lamp on)
Humidity Level & FluctuationN/A
Light Control RangeProgrammable 0 ~ 20000
Temperature SensorThermistor
Exterior MaterialPainted Steel
Interior MaterialSS SUS-304
Insulation MaterialPUF
Outer Doors3
Outer Door LockN
Field Reversible Door
Inner Doors1
Shelf Dimensions (W x D x H)
Max. Load Per Shelf25 kg
Max. Shelf Capacity100
Access Port1
Access Port PositionCeiling
Access Port Diameter40
Power FailureR
Out of Temperature SettingB-R
High TemperatureB-R
Out of Humidity SettingN/A
Door OpenV-B
Power SupplyLocal
Noise Level29 dB