Operates on DC voltages from 6 to 42 volts 42 V Ready: for use in the of vehicles with mixed or single 42 Volt systems Tracing of wires is made possible even inside bundles, conduits, behind panels, under carpets, upholstery, etc 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: Aisuoka