Our cable tracker electrical uses advanced technology to accurately locate short and open circuits in automotive wiring. It emits specific signals to pinpoint faults, even in hard-to-reach areas, making it a reliable tool for quick diagnostics 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 Our em415pro automotive electrical open&short finder circuit tester ensures safety while detecting faults. It protects your vehicle's electrical system and adheres to safety standards, giving you peace of mind during use Revolutionize your repair process with our efficient automotive short circuit finder. It quickly identifies faults, slashing repair time and labor costs, making it a must-have for professional workshops Colour:As Shown Material:Metal+Plastic Note: The product does not come with a battery. You need to purchase two 9V batteries for use Package Contents: 1 * automotive electrical diagnostic tools Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.