Wireless Door/Window Open Alarm System Home Security Magnetic Alarm Sensor, Burglar Intrusion Alarm Kit,Anti-thief Volume Alert System, Easily installation, Plug and Play. This is a very easy to install & use, economic and functional Home...
Receiver
Wireless Door Sensor Chime BITIWEND Alarm Contact Sensor Door Bell for Office/Home/Store,Door Open Chime Window Alarm Operating Range 600ft With 52 Chimes 4 Volume Levels, 1 Door Sensor + 1 Plug-in Receiver Specification of Door Sensor Alarm...