X-10 Transceiver Module - Model RR501<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Increased sensitivity compared to the TM751 transceiver</li><li>Built-in 2-pin polarized appliance module responds to unit code 1 or 9</li><li>User selectable via a slide switch</li><li>Use this as the heart of any X10 wireless remote control system or to add an additional housecode to an existing system</li><li>Receives RF signals from an X10 remote via the antenna and retransmits them thru your house wiring to control X10 modules</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41iYrzp03BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41iYrzp03BL.jpg" noproxy>