4 20mA output

stove gas detector direct from Wanlin Fire Protection — 12-year factory experience, WL-GA205 4G gas detector certified CE/EN50194/UL2075/FCC. Key specs: Infrared Gas Sensor + LoRaWAN Long Range + Low Power + Dual Communication, LoRaWAN + IoT Gateway + Cloud Platform + Long Range (up to 15km) + 4G Cat.1 Backup + Battery Optimized. Catalytic/infrared sensor, s···

smoke detector tester compliance direct from Wanlin Fire Protection — 12-year factory experience, WL-SF700 smart fire protection product certified CE/EN54/UL/NFPA 72/FCC/RoHS/REACH/ISO 9001. Key specs: Multi-Protocol Gateway + 4G/Ethernet/WiFi + Edge Computing + Cloud Platform + API/SDK, Modbus/BACnet/KNX/MQTT/HTTP + 4G/Ethernet/WiFi + Cloud Dashboard + API/···