Signal meter for your RV over-the-air TV antenna. Connects in-line with your antenna. Variable sensitivity adjustment to work with TV towers both near and far. DVB-T 95DT TV Antenna Signal Finder Meter with pointer more convenient to locate the satellite signal. Frequency range: 170 - 862MHz Certification: RoHS, CE Measurement accuracy -40 ~ -10dBm Input level range: 65 - 95 dBuv Power supply: 9V DC or Battery pack 6x AA batteries (not included) 1. Connect the antenna cable to the left F Female and the battery pack cable to the right F Female. Remove any external amplifier that may be connected to the antenna. 2. Adjust the antenna to the best position by watching the meter's reading. Higher up the scale gives a better signal. If the finder's reading becomes full scale, adjust the level control knob to reduce the reading to around 5 (Turning the knob clockwise decrease the reading), continue to move the antenna have the highest possible meter reading. 3. Remove the finder and replace any amplifier that was disconnected. Colour:Blue + silver Material:Plastic + metal Size:100*35*65mm Package Contents: 1* digital signal seeker 1*This English manual Only the above package content, other products are not included. Note: Light 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.