Three tools in one. The remote control/fault finder can be used to switch the fence on or off anywhere along the fence-line, or to find faults and easily check fence voltages. Use only with remote ready energizers such as the 6000, 6000R, 120000, 20000, 36000 & 63000 units. Large back lit display is easy to see, even in the dark. Bolt arrows show direction of the current & simultaneous voltage & current reading, including audible beeping. 15 different channels to avoid interference with neighboring fences. Convenient carry clip for belt attachment & also features 9v replaceable battery. no earth lead required. Automatic polarity detection.