High Quality!This instrument is designed to identify trace wires or cables without damaging the insulation. You can also use it to check short circuit loacting open circuit so on. There are a Sender a Receiver included in the instrument.Tracing of wires is made possible even inside bundles, conduits, behind panels, under carpets, upholstery, etcEasy to use: simply connect the transmitter in series with the circuit or wire under test, (.: in place of a blown fuse, a connector,in series with an open wire, a light bulb socket, etc.), scanning the circuit or wire with the tracers flexible probe to find the spot6-42 V : for use in the of vehicles with mixed or single 42 Volt Operates on DC voltages from 6 to 42 voltsInternally against power surges overloads7inch flexible probe allows reaching wires in congested Transmitter Receiver show open or short circuit conditionsAdjustable sensitivity for all tracing situationsNo wire piercing required, non-contact technology!Specification:Wire TracingChecking for short circuitlocating open circuitWire identificationItem Length:20.4 cmItem Width:4.4 cmItem Type:Electrical Testers and Test Leads Features:short cable finder.Power Supply:Two 9V batteries RequiredItem Type: Electrical Testers and Test LeadsItem Weight: 0.22kgcolor:As shownMaterial:plasticPackage Contents:1 x Automotive Short Open Finder (9 Volt Battery Not included)1 x English manualOnly the above package content, other products are not included.Note: Light reflection different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.