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, 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 will 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.