Linear DXT-42 2-Button, 3-Channel Key Ring Transmitter, White with Green buttons

The Model DXT-42 2-Button, 3-Channel Key Ring Transmitter is a battery powered, portable, miniature transmitter designed for use with Linear’s DX Format receivers. Each transmitter can be used in a limitless number of wireless remote control applications. Pressing a transmitter button sends a digitally coded wireless signal to its companion receiver. The transmitter buttons have a positive click feel, The digital DX code format features over a million possible codes. The DX transmitters are precoded at the factory to unique codes, so no field coding is required. Transmitters can send a signal for up to 10 seconds with each button activation.