AAS Wireless Electronic Window and Door Sensor

These are magnetic switch & emitter units which send alarm signals to the Main Digital Keypad/Auto-Dialer unit when the door and/or window is opened Door and window sensors - a typical setup will include door sensors for your exterior doors, as well as several window sensors. Usually these are the same type of sensor - they simply attach a transmitter to your door or window frame and a magnet to the door or window itself, so the alarm can detect if the door or window is opened. Note that these sensors will not detect glass breaks

Emission Distance: 100～200 m in open area Power Supply: DC12V（23A battery,usage life of 1 year ） Frequency: 315MHz±0.5MHz Dimension: 71mm * 36mm * 15mm Weight：0.05 Kg Out-shell Material: ABS