Colors: As the picture showed Best Car Automotive Short & Open Finder EM415PRO Car Short Circuit Detector Car Repair Tool detector Track the cables or wires Sender Size(Length x Thickness x Height): about 5.5 x 6.5 x 2.3cm(2.17 x 2.56 x 0.91) Receiver Size(Length x Thickness x Height): about 21 x 4.5 x 2.5cm(8.27 x 1.77 x 0.98) Description : EM415PRO detects and alerts you immediately where a circuit is open.You can quickly and easily Locate short circuits,open connections,broken wires,current leaks and even trace wires.You can also find intermittent circuit problems by flexing wires or connectors and listening for a change in the receiver tone Allowing you general tracing or pinpointing the problem location.It also shows you the direction to the short with its direction indicator,eliminating the suspection. This professional tool will work on all kinds of circuits with voltages between 6 and 42 volt DC.such as those found in automobiles,trucks,tractors,boats,RVs,etc...With its wide working voltage range Features: No wire piercing required, non-contact technology Easy to use by just simply connect the transmitter in series with the circuit or wire under test, (i.e.: 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. Operates on DC voltages from 9 to 42 volts Adjustable sensitivity for all tracing situations Flexible probe allows reaching wires in congested places Reciever probe is built of coiled steel, can be bent inorder to reach wires in congested areas. This Automotive Short and Open Finder, car repair 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. Included in the set are Sender and a Receiver with a flexible thus, tracing wires made possible even inside bundles, conduits, behind panels, under carpets, upholstery, etc. Transmitter and Receiver LEDs show open or short circuit conditions Internally protected against power surges and overloads Application : Checking Short Circuit Locating Open Circuit Wire Identification Wire Tracing Receiver: On/Off button Probe length: about 18cm(7.09) flexible probe Test button Sender: Red and black test leads cable length about 60cm(23.62) length Power : 9V battery (NOT Included) Tone/Cont (Continuity) LEDs Tone/Off/Cont (Continuity) switch How to use the probe? The probe of the Receiver is built of coiled steel and may be bent as needed, in order to reach wires in ongested or difficult areas. Depending on the circuit characteristic and sensitivity settings, the probe will pick up the signal from the wire in a range of positions. However,for the best possible range the Receivers probe tip (black cap) should be positioned perpendicular (at 90o) to the wire being traced and either above or below it. Application Checking for short circuit,Loating open circuit,Wire identification, Wire traceing,etc. packaging Included:1 pc Automotive Short and Open Finder Reciever (Not including battery)