Product Description: Winegard RFL-332 Black SensarPro RV TV Signal Meter Designed to work with all amplified Sensar antennas, the SensarPro replaces your current power supply and makes peaking on digital channels a breeze. SensarPro is an all in one product that 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 amplification 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. Proudly designed, tested and built in the U.S.A.