AGPTEK Satlink WS6903 Digital Displaying Satellite Signal Finder Meter LED Displaying satellite meter finder. Shows the strength of the signal clearly. Easily setup satellite dishes on RVs. Connect to your LNBF and receiver to the satellite finder to track the clearest setting for the satellite you wish to tune to. Audio tone gets louder at the best place.Works with multiple dish systems. Make adjustments yourself without a second helper. Easy and quick operation.What took 30 minutes now took 30 seconds.