gas detector with solenoid valve

DC powered CO alarm Wireless Combustible Gas Detector with Solenoid Valve Output export OEM ODM wholesale

long life battery wireless fire alarm Wireless Combustible Gas Detector with Solenoid Valve Output export OEM ODM wholesale

last test date gas alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-GA203 4G gas detector certified CE/EN50194/UL2075/FCC. Key specs: Electrochemical CO Sensor + Catalytic Gas Sensor + 4G Cat.1 Communication, 4G LTE Cat.1 + Cloud Platform + Dual Alarm (Gas + CO) + SMS/Push/Email + Valve Control. Catalytic/infrared sensor, solenoid va···