Features:Compass with attenuation control function easily locate satellite signal. In-line IF signal strength meter. Excellent sensitivity. Great for remote satellite antennas. Numbers feedback displays signal strength intuitively.Variable sensitivity adjustment to work with TV towers both near and far.Descriptions:Elegant exterior and convenient to carry. Corrosion-resistant connectors. Signal meter for your RV over-the-air TV antenna.Specifications:Color: blueMaterial: plasticFrequency range: 170-860MHzInput level range: 65-95dBuvPower supply: 9-12V DCModel: DT-01Package included:1 x Satellite finder1 x English User manual1 x Battery holder1 x Power cableNotes:If your antenna has an internal amplifier, (eg: 01MM-SQ01), it should be powered by an external power supply via a DC power inserter. Make sure the power inserter is positioned between the finder and the antenna.Please allow 0-2mm error due to manual measurement, thanks for understanding.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you!