This tool is designed to identify and trace wires or cables without damaging the insulation. You can also use it in checking for short circuit and locating open circuit and so on. Application : Wire Tracing Checking Short Circuit Locating Open Circuit Wire Identification Features: Receiver probe is built of coiled steel and can be bent Operates on DC voltages not exceeding 42 volts Internally protected against power surges and overloads 7" flexible probe Transmitter and Receiver LEDs show open or short circuit conditions Adjustable sensitivity No wire piercing required, non-contact technology Specifications: Receiver: On/Off button Test button Probe length: 7" flexible probe Sender: Tone/Off/Cont (Continuity) switch Tone/Cont (Continuity) LEDs Red and black test leads cable (61cm length) Receiver Dimensions: 38.5 x 4 x 2.3cm (H x W x D) Sender Dimensions: 6.5 x 5.6 x 2.1cm (H x W x D) DC Voltage: Operates not exceeding 42 volts Power : 9V battery (6F22) Set Includes: 1 x Sender 1 x Receiver 2 x 9V Battery 1 x Carrying Pouch English User Manual Standard Factory Packaging