Features: In-Line IF signal strength meter,75Ω connector,Built-In light & electric buzzer. Built in Compass;Ideal for satellite installations or to re-point your satellite dish. -95DR has a blue back light to allow use at night. The signal meter never needs to be recalibrated nor does it need complicated programming. ATT increasing key. If the incoming signal is too strong, (the thermometer-scales shows max and the signal strength value shows 99) it can easily be attenuated by enabling this "attenuation" function, it reduces the incoming signal to a lower level. There are four step attenuation totally. Built-in amplifier compensates insertion loss. Use LCD to display the satellite signal intensity It automatically recognizes the LNBF frequency and works with any C band, Ku band, or Ka band satellite. No need to input transponder frequency, symbol rate, or polarity. This meter is truly plug & play. Specifications: Frequency Range: 950-2150MHz Input level Range: -40~-10dBm Impedance: 75Ω Gain: ≥10 dB Power Supply: 13-18V DC Operating Temperature: 0~40° size: 130 x 65 x 27mm Material: ABS colour: blue Package Contents: 1 x Digital 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.