anti interference CO sensor

CO alarm with multi gas sensor direct from Wanlin Fire Protection — 12-year factory experience, WL-CO802 fully certified UL 2034/EN 50291/CE/FCC/RoHS/REACH. Key specs: Addressable Loop + 4G LTE Backup, Electrochemical CO Sensor + Addressable Protocol, Loop powered + 24h backup battery. MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Ser···

smoke and CO alarm with digital display direct from Wanlin Fire Protection — 12-year factory experience, WL-CO804 fully certified UL 2034/EN 50291/CE/FCC/RoHS/REACH. Key specs: LoRaWAN 868/915MHz, Electrochemical CO Sensor + Long Range Radio, 5-year replaceable battery (2x D lithium). MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Serv···