Features: Built-in IF signal strength meter, 75 contacts, built-in lamp and electrical summation. Built-in compass; perfect for satellite installations or aligning your parabolic antenna. SF-95DR has a blue background lighting that allows for use at night. The signal meter never needs calibration and requires no complicated programming. ATT-attenuation button. If the incoming signal is too strong (thermometer shows max and signal strength shows 99), it can be easily reduced by activating this "attenuation" function, which lowers the incoming signal to a lower level. There are a total of four steps in attenuation. Built-in amplifier compensates for insertion loss. Use LCD to display satellite signal intensity It automatically detects LNBF frequency and works with all C-band, Ku-band or Ka-band satellites. No need to specify transponder frequency, symbol rate or polarization. This meter is truly plug & play. Description: With electronic summation Sensitive meter for inline use; pocket size and light weight Powered by receiver, great tool for campers. Specifications: Color: Blue Material: Plastic Size: 130*65*27mm Frequency Range: 950-2150MHz Input Level Range: -40-10dBm Impedance: 75 Gain: 10 dB Power Source: 13-18V DC Operating Temperature: 040 Model: SF-95DR Package Contents: 1 x Digital Satellite Finder Note: Allow 0-2mm error due to manual measurement, thank you for your understanding. Due to differences between screens, the image may not reflect the actual color of the object. Please understand, thank you.