The instrument is used to identify and trace wires or cables without damaging the insulation. You can also use it to check for shorts and opens, etc. The instrument contains a transmitter and a receiver. Wire tracing can be done even inside harnesses, conduits, behind panels, under carpets, upholstery, etc. Easy to use: Simply connect the transmitter in series with the circuit or wire under test (not a blown fuse, connector, in series with an open circuit, light bulb socket, etc.), then scan the circuit/wire with the tracer's flexible probe to find the 6-42 V point: 6 to 42 V DC, suitable for mixed or single 42 V vehicles, protects against internal overvoltage and overloads, flexible 7-inch probe to reach wires in messy areas, transmitter and receiver indicate open or short conditions, adjustable sensitivity to accommodate all tracing situations, no need to pierce wires, non-contact technology! Specifications: Line tracing Check for shorts Locate opens Identify wires Item length: 20.4 cm Item width: 4.4 cm Item type: Electrical tester and test leads Features: Short cable search. Power supply: Two 9V batteries required Product type: Electrical tester and test leads Unit weight: 0.22 kg Color: As shown in the picture Material: Plastic Package Contents: 1 x Automotive Short Open Sight (9V battery not included) 1 x English Manual Above is the package content, others are not included. Note: Light reflection and different displays may cause the color of the item to be slightly different from the actual item. The allowed measurement is +/- 1-3 cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store