Features 1.[Range Of Compatibility] The digital satellite finder is compatible with for DirecTV, and free satellite systems, etc. Comes with a compass for easier and faster adjustments. 2.[Buzzer And ATT Function] Digital satellite signal finder has a buzzer and attenuation (ATT) function, and the signal strength meter will have a pitch tone (the higher pitch of the strobe signal) on the buzzer. 3.[Easy To Use] This digital satellite signal meter with electronic buzzer, easy to operate, attenuation, sound tone and backlight, built in amplifier to compensate for insertion loss. 4.[Display Performance] Satellite signal finder supports sound with analog signal strength meter display, illuminated meter display for night use. Display is clear and easy to read. 5.[Connection Instructions] Connect the satellite detector to your LNB and connect the receiver to the strength finder TV antenna to track the clearest setting of the satellite you wish to tune to. specification?Item Type: Digital Satellite Finder Material: ABS Frequency Range: 950-2150 MHz Input Level Range: -40 to -10 DBm Impedance: 75 Operating Range (LNB Gain): 52-60dB Supply Voltage: DC 13-18V PackageList1 x DigitalSatelliteFinder 1 x InstructionManual