Gas Alarm for Tankless Water Heater China manufacturer. 4G gas detector with catalytic combustion sensor (LEL), auto shut-off valve, 4G Cat.1 cellular alarm, cloud platform monitoring. EN50194 & UL2075 certified. OEM/ODM, wholesale, global shipping to France. Contact: wanlinfirecontrol@163.com
industrial gas alarm standard direct from Wanlin Fire Protection — 12-year factory experience, WL-GA204 fully certified CE/EN54/FCC/RoHS. Key specs: 4G LTE + Wi