Cold storage refrigerant gas alarm
Freon alarms are used to detect leaks of refrigerants such as R22, R134a, R410A, and R507. Most Freon gases are heavier than air, so they settle near the ground after leaking, and high concentrations can pose a risk of asphyxiation. Some refrigerants (R32, R290) are also flammable. The entire system consists of a detector (sensor) plus an alarm controller, which can provide audible and visual alarms, activate exhaust fans, shut down refrigeration units, and transmit alarm signals to the duty room.
