This HOMESAFE WIRELESS HOME SECURITY SENSOR is an add on adjustable sensor for the EWD-1 Safety Technology, Safe Family Life, or the HomeSafe Barking Dog Alarms. It is also compatible with the HomeSafe Wireless Outdoor Siren; HA-Siren.
It is a double sensor that detects vibration and when your door/window has been opened. It has a wireless radio frequency range of 300 feet. When triggered the RF signal activates the alarm. Uses one 9-volt battery (not included). Easily protect every window and door of your home.
Can also be used as a stand alone tone door alarm.