China leading smoke heat co detector factory. CE EN54 ROHS INMETRO standard compliant. Low false alarm rate, high sensitivity. Wholesale, OEM, ODM service. Call: +8613261677119
Smoke Heat Composite Detector direct from Wanlin Fire Protection — 12-year factory experience, WL-SM400 fully certified CE/EN54/FCC/RoHS. Key specs: LoRaWAN protocol, 2-5km urban range, 500+ devices p