Simply connect to the back of your command station to the rail outputs and place in the center of the room near the ceiling. Use twisted pair or speaker cable for long runs (> 10 ft) back to the command station. Since the transmitter only draws 21 mA, the wire can be as small as 28 ga. Only one transmitter is needed for the entire layout. This device transmits low power radio frequencies on the Instrument-Scientific-Medical (ISM) band (also used by 900 MHz cordless phones) with a range of about 50 feet.
Dimensions are 79mm (3.125") 20mm (0.812") long by 15mm (0.635") thick.
Operates on the 868 MHz "euro" ISM band and pairs with the 869 MHz receiver.