Cheap home security intruder detectors wireless Magnetic door/ window sensor

Wireless Magnetic Door Sensor, Window Sensor (KR-D025)

Wireless Door/Window Sensor, 315/433MHz, Anti-tamper Function, Emergency Switch, CE Certified, RoHS

Wireless Window sensor, LED On/Off optional, automatic temperature compensation, OEM & ODM services

Door/Window Sensors, 3W Power, 200V DC Voltage

Wireless Door/Window Sensor, 150 Meters Transmitting Distance

Wireless Door/Window Sensor, Alloy Housing Material, NC Output