non replaceable battery

smoke detector OEM for Southeast Asia direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP500 smart fire detector certified CE/EN14604/EN54/UL217/UL268/FCC. Key specs: Multi-Sensor Fusion (Smoke + Heat + CO) + AI Machine Learning Algorithm + 4G LTE + WiFi Dual Communication + Edge Computing, 4G LTE Cat.1 + WiFi + AI Cloud Platform + Smart ···

catalytic combustion gas sensor direct from Wanlin Fire Protection — 12-year factory experience, WL-SF300 smart fire protection product certified CE/EN54/UL/NFPA 72/FCC/RoHS/REACH/ISO 9001. Key specs: Microprocessor + Addressable Loop + 4G/Ethernet + Cloud Integration + AI Diagnostics, RS485/Ethernet/4G + Cloud Platform + Modbus/BACnet + SMS/Push/Email. IoT ···

catalytic combustion gas sensor direct from Wanlin Fire Protection — 12-year factory experience, WL-SF300 smart fire protection product certified CE/EN54/UL/NFPA 72/FCC/RoHS/REACH/ISO 9001. Key specs: Microprocessor + Addressable Loop + 4G/Ethernet + Cloud Integration + AI Diagnostics, RS485/Ethernet/4G + Cloud Platform + Modbus/BACnet + SMS/Push/Email. IoT ···