smoke alarm with Bluetooth

NIST traceable calibration 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/SDK. I···

NB-IoT smoke detector direct from Wanlin Fire Protection — 12-year factory experience, WL-Kit-4G 4G smart fire protection product certified CE/FCC/RoHS/REACH/ISO9001. Key specs: 4G LTE + WiFi + Zigbee Multi-Protocol Hub with 15 Sensors, 4G LTE + WiFi + Zigbee + SMS + Push + Phone Call + App + Voice + Cloud Platform. No monthly fees, 4G cellular backup, cloud···