Chemically stable, CFC -free, commercially available and environmentally safe refrigerant.
Microprocessor control, adjustable temperature range: -20℃ to -40℃ LED digital display and increment at 0.1℃.
Permanently lubricated cooling fan for safety and longevity.
Wide voltage band for 187V~242V
Multiple malfunction alarms to detect high and low temperature, sensor error, power failure, temperature controller malfunction.
Two types of alarm indications: audible buzzing and visual flashing light.
Door lock design to avoid abnormal door open
Big screen for easy observation
Standard testing hole
High density CFC-free urethane foam insulation.
Standard with 25mm test hole
Power failure protect: the device would be attack by the high current when all devices restart simultaneously, the start-delay function would protect device from the damage