Features: Perfect electrical tester for reducing diagnostic time in automotive electrical systems. Widely used in checking short circuit, locating open circuit, wire tracing, wire identification and so on. Flexible probe makes your testing easily, and allows reaching wires in congested places. It can also test for continuity with the assistance of its auxiliary ground lead. Only use for DC voltages from 9 to 42 volts. The probe of the receiver is built of coiled steel and may be bent as needed for convenient use. Specifications: Operation voltage: 9-42V DC Receiver: On/Off button Test button Probe length: 7 inch flexible probe Receiver Dimensions: 38.5 x 4 x 2.3cm (H x W x D, approximate) Sender Dimensions: 6.5 x 5.6 x 2.1cm (H x W x D, approximate) Power: 2x9V battery (6F22) Not Included Package size: 25 * 16 * 5cm Package weight: 330g Package List: 1 x Automotive Short and Open Finder Sender 1 x Automotive Short and Open Finder Reciever 1 x Carrying Pouch 1 x English User Manual