Electrical Circuit tester- 6-12 Volts For Home Use- To Find Open Wires -By Katzco ERGONOMIC DESIGN The slim ergonomic design of this tester ensures you have a tight comfortable grip while using. Rubber layer on the wires and clamp provide maximum safety against electrical currents. 6 FOOT LEAD - This circuit tester includes an extra-long 6 foot coil cord that makes for great flexibility and freedom so you can move around comfortably when you test circuits out around the house or for big vehicles like trucks. MULTI USE  Can be used in a variety of applications. Mechanics, electricians, and homeowners alike will find great use with this tester. Test for broken or live wires, fuses and circuits. Reach into light sockets, taillights, faulty sockets, distributors, generators, car batteries, headlights, turn signal circuits, motorcycles, suvs, switches, and power outlets. The possibilities are endless! LONG STEEL PROBE  The long steel probe with alligator clip can reach into tight spaces and also pierce through insulation, keeping your hands safe while you test connections. LIGHT INDICATOR  This circuit tester also includes a built in light indicator. The light will illuminate brightly to tell you when a circuit is live and good to use. Light will not illuminate if a circuit is broken.