This simple door alarm set includes a
wireless 'Door Sensor' and 'Receiver/Chime'
Wireless Door Sensor
A small magnetic sensor and radio Transmitter Unit are mounted at the top of the door to be monitored. When the door is opened, a signal is sent to the Wireless Alarm System Receiver/Buzzer (right). This sensor is powered by a single 9Volt battery. The toggle switch on the side of the transmitter can be used to turn the unit off if you want to have the door open without the alarm sounding.
Wireless Door Monitor Receiver/Chime
The Wireless Door Monitor Receiver/Chime sounds the chime when it receives the alarm signal from the Door Sensor Unit. Once the door is opened, the receiver will chime until the door is closed or the receiver is turned off. The On/Off switch also allows selection of high or low chime volume. The unit is portable and is powered by two AA batteries.
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