door contact sensor

Leading Medical Alert System supplier in China — Wanlin Fire Control. ISO9001 certified, multi-standard approved, 2-year warranty. Competitive wholesale pricing, OEM customization, worldwide delivery. Email wanlinfirecontrol@163.com.

UK home security direct from Wanlin Fire Protection — 12-year factory experience, WL-SG500 fully certified CE/FCC/RoHS. Key specs: WiFi/Zigbee wireless, 8s alert push via APP/SMS/Audible + Auto Gas Shut-Off, AC Powered + Battery Backup

TV tip over prevention alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SG500 fully certified CE/FCC/RoHS. Key specs: WiFi/Zigbee wireless, 8s alert push via APP/SMS/Audible + Auto Gas Shut-Off, AC Powered + Battery Backup

villa security system direct from Wanlin Fire Protection — 12-year factory experience, WL-SG500 fully certified CE/FCC/RoHS. Key specs: WiFi/Zigbee wireless, 8s alert push via APP/SMS/Audible + Auto Gas Shut-Off, AC Powered + Battery Backup

Looking for a reliable wireless door sensor alarm supplier? Wanlin offers factory-direct pricing, EN50131 / CE / RoHS certification, OEM branding, and export service to Australia and worldwide. Free sample available. Contact: wanlinfirecontrol@163.com | +8613261677119

Looking for a reliable wireless door sensor alarm supplier? Wanlin offers factory-direct pricing, EN50131 / CE / RoHS certification, OEM branding, and export service to Australia and worldwide. Free sample available. Contact: wanlinfirecontrol@163.com | +8613261677119