Mini size and light weight, really portable. Designed with a compass for easier and quicker tuning. LCD graphic display with LED backlit to show the satellite signal intensity. Connect to your LNB and receiver to the to track the clearest setting for the satellite you wish to tune to. No external power or batteries required, power supplied from your satellite receiver. The digital is microprocessor controlled, making it very reliable and accurate. Signal strength is presented graphically on the LCD display in form of thermometer-scale and in numbers (0-99). It can also present pitch tones (the higher tone the better signal) on a buzzer. The digital satfinder is very sensitive and can detect the weakest of signals, strong incoming signals (powerful satellite, big dishes) can easily be attenuated for better readout. With buzzer and attenuation control function, easy user-friendly operation. Material: ABS Impedance: 75 Gain: 10dB Power Supply: DC13-18V Signal Detection: 0Hz/22KHz Frequency Range: 950-2150MHz Input Level Range: -40~-10dBm Operating Range: 52-60dB Operating Temperature: 0-40 Item Size: . 12.7 x 6.5 x 2.5cm / 5 x 2.56 x 0.98in Item Weight: . 92g / 3.26oz Colour:White Package Contents: 1 finder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.