underground facility CO detector

museum CO alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-CO801 fully certified UL 2034/EN 50291/CE/FCC/RoHS/REACH. Key specs: WiFi + Bluetooth 5.2, Electrochemical CO Sensor + Digital Display, 3-year replaceable lithium battery (2x CR123A). MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Serving 60+ countries ···