Linear DXT-31 Door/Window Transmitter, 315 MHZ, 1.6" Weight x 3.4" Height

The Model DXT-31 Door/Window Transmitter is a battery powered stationary transmitter designed for use with Linear€s DX Format receivers. This transmitter can be used in a limitless number of wireless remote control applications. Triggering the transmitter with its built-in magnetic switch, an external switch or an external glass break detector sends a digitally coded wireless signal to its companion receiver. Pressing the transmitter€s case sends a test transmission.