gas detector with NB IoT

waterproof smoke alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-FACP-4G 4G smart fire protection product certified CE/FCC/RoHS/REACH/ISO9001. Key specs: 4G LTE + WiFi + RS485 + Addressable Loop (256 Devices), 4G LTE + WiFi + Ethernet + RS485 + SMS + Push + Phone Call + App + Cloud Platform. No monthly fees, 4G cellular backup, clo···

gas detector for industrial use direct from Wanlin Fire Protection — 12-year factory experience, WL-HS102 certified CE/FCC/RoHS/REACH/ISO9001/NFPA 72. Key specs: 4G LTE + WiFi + GPS Medical Alert Integration, 4G + WiFi + GPS + SMS + Phone Call + Push + Two-Way Voice. No monthly fees, 4G cellular backup, DIY installation, expandable to 50-100+ sensors. MOQ 1···