four wire connection

household CO alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP200 smart fire detector certified CE/EN14604/EN54/UL217/UL268/FCC/QCVN. Key specs: Photoelectric Smoke Sensor + Electrochemical CO Sensor + NB-IoT Cellular Communication + Multi-Sensor Fusion, NB-IoT + IoT Cloud Platform + Dual Alarm (Smoke + CO) + SMS/Push/Email + Smar···

smoke detector with phone alert 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 Push +···

perfluorohexanone replacing halon direct from Wanlin Fire Protection — 12-year factory experience, WL-SF500 smart fire protection product certified CE/EN54/UL/NFPA 72/FCC/RoHS/REACH/ISO 9001. Key specs: FK-5-1-12 Clean Agent + IoT Control Panel + Cloud Monitoring + Multi-Zone Detection, 4G/Ethernet + Cloud Platform + Smoke/Heat/CO Detector + Solenoid Valve +···

Africa fire alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SF900 smart fire protection product certified CE/EN54/UL/NFPA 72/FCC/RoHS/REACH/ISO 9001. Key specs: Multi-Device Bundle + IoT Gateway + Cloud Platform + 4G Backup + APP Management, 4G/WiFi + Cloud Platform + APP Control + SMS/Push/Email + Voice Alert. IoT cloud platform, A···