Liquid level line monitoring and automatic filling system
There is a liquid nitrogen level monitoring system in the liquid nitrogen tank. When the liquid level drops to the specified line level, liquid nitrogen will be filled automatically to ensure that the sample is always below the liquid nitrogen level and the freezing storage temperature is always within the freezing storage temperature to ensure the safety of the sample
Honeywell Oxygen Alarm device
Honeywell Oxygen Alarms, both fixed and portable, will alarm and automatically start the strong exhaust when the oxygen concentration in the frozen storage area is lower than the set concentration, which can restore the oxygen concentration to normal in a short time
