Analog Explosion-Proof Special Gas Detector 4-20mA TS293PX-H 980293002

Room Lighting and Air Conditioning Control Device GR-57/A 930057003

• They are placed in hotels and rental rooms to control the power supply in the rooms.
• They work in conjunction with a GR-43 device.
• When the occupant leaves the room and removes the special magnetic key from the GR-43 slot, after 60 seconds, the power supply to the room is turned off.
• If the key is re-inserted into the socket the power supply to the immediate.