contact sensor for door

Contact Sensor for Door manufactured by Wanlin Fire Control — AI-powered home security bundle with smoke detector, CO alarm, gas detector, water leak sensor, motion sensor, door/window sensor, video doorbell, and panic button. CE/EN14604/EN50291/FCC certified. Zigbee, Z-Wave, WiFi 6, 4G LTE. DIY installation, no monthly fees, app control. Factory-direct pri···

stove timer with app direct from Wanlin Fire Protection — 12-year factory experience, WL-HS107 certified CE/FCC/RoHS/REACH/ISO9001/NFPA 72. Key specs: 4G LTE + WiFi + Solar Option + Remote Management, 4G LTE Primary + WiFi Backup + SMS + Push + Phone Call + Email. No monthly fees, 4G cellular backup, DIY installation, expandable to 50-100+ sensors. MOQ 100 ···