Tracing of wires is made possible even inside bundles, conduits, behind panels, under carpets, upholstery, etc 42 V Ready: for use in the of vehicles with mixed or single 42 Volt systems Operates on DC voltages from 6 to 42 volts Easy to use: simply connect the transmitter in series with the circuit or wire under test, (: in place of a blown fuse,across a connector, in series with an open wire, a light bulb socket, etc.), and scanning the circuit/wire with the tracers flexible probe to find the trouble spot Internally protected against power surges and overloads, Weight: 0.64374980504 pounds, Manufacturer: Quzenn