The Door/Window Access Transmitter has two magnetic contact bars. When the door or window is opened, the bars lose magnetic contact, triggering the transmitter. The transmitter sends a signal to a variety of Silent Call 318 Mhz receivers.
Features:
Easily installed.
Battery operated (2-AAA batteries included).
Range of up to 500 feet (depending on which receiver is used).
Works with a variety of Silent Call 318 MHz transmitters.
