RSH Tuya wifi intelligent window detector thickness door security smart life contact sensors alexa google wifi door sensor buy it!
$1.00-$3.80
Shenzhen Factory Tuya Smart WiFi Home Alarms Door Sensor Door Open/Closed Detector with App Notification PST-WD002 buy it!
$4.10-$4.36
KERUI K52 smart alarm system supports smoke detector door sensor motion sensor buy it!
$155.00
home security system door sensor Magnetic anti theft Burglar Alarm door sensor alarm for kid safety buy it!
$3.42-$4.00
z-wave alliance certified 868mhz/908mhz smart door contact sensor for home alarm wireless z wave magnetic door window sensor
$11.00-$15.00