Works with all Sensar antennas to replace your current power supply and make peaking on digital channels a breeze. All in one product acts as a signal meter, adjustable amplifier and wall plate power supply for your Sensar antenna. It is ready out of the box and can be customized for specific search modes eliminating guesswork and frustration. Built in apmplification can give you up to 10 dB of gain for increased performance or the ability to lower the gain when positioned near a tower. Adjustable audio feedback comes in handy when the wall plate is out of sight or reach. High grade electronic digital tuner focuses only on U.S. digital broadcast frequencies and ignores non TV broadcast signals to provide precise and accurate channel readings. Made in the USA.