door and window sensor

window ajar alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-HS106 certified CE/FCC/RoHS/REACH/ISO9001/NFPA 72. Key specs: 4G + WiFi + Smart Scene Automation, 4G + WiFi + SMS + Push + Phone Call + Chime. No monthly fees, 4G cellular backup, DIY installation, expandable to 50-100+ sensors. MOQ 100 kits, 20-25 working days, OEM/ODM cus···

Real-Time Alerts Security System China manufacturer. AI home security and fire alarm bundle with CE UL RoHS FCC. 4G wireless, smart home integrated. OEM/ODM, wholesale, global shipping to Italy. Contact: wanlinfirecontrol@163.com