Jrelecs SF-9505A Satellite Mete Digital Satellite Finder / Signal Receiver w/ Compass - Black The digital satellite finder is microprocessor controlled, making it very reliable and accurate Signal strength is presented graphically on the LCD-display in form of thermometer-scales and in numbers (0~99) It can also present pitch tones (the higher tone the better signal) on a buzzer The digital satellite finder is very sensitive and can detect the weakest of signals, strong incoming signals (powerful satellite, big dishes) can easily be attenuated for better readout. Easy user-friendly operation.