two wire connection

port fire protection direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP600 smart fire detector certified CE/EN14604/EN54/UL217/UL268/FCC. Key specs: Fixed Temperature + Rate-of-Rise Heat Sensing + LoRaWAN Long Range + Ultra-Low Power + Dual Communication, LoRaWAN + IoT Gateway + Cloud Platform + Long Range (up to 15km) + 4G Cat.1 Backup···

intelligent fire alarm system direct from Wanlin Fire Protection — 12-year factory experience, WL-SF600 smart fire protection product certified CE/EN54/UL/NFPA 72/FCC/RoHS/REACH/ISO 9001. Key specs: Aerosol Dispersion + Adjustable Output + Bluetooth Data Logging + NIST Calibration, Bluetooth + USB Data Export + Test Report Generation + Cloud Sync. IoT cloud···

intelligent fire alarm system direct from Wanlin Fire Protection — 12-year factory experience, WL-SF600 smart fire protection product certified CE/EN54/UL/NFPA 72/FCC/RoHS/REACH/ISO 9001. Key specs: Aerosol Dispersion + Adjustable Output + Bluetooth Data Logging + NIST Calibration, Bluetooth + USB Data Export + Test Report Generation + Cloud Sync. IoT cloud···