Designed with a probe, our high-precise voltage test pen helps to detect fuses, switches, armatures, distributors and circuits, and quickly and easily locate short circuit and open circuit. Our high-precise voltage test pen is ideal compatible automobile, motorcycle, bulldozer and more. It is designed compatible detecting faults in low tension circuits of traffic or transport machinery. It is constructed of copper material. With alligator-clip, it holds the object more stable and tighter. The length of this product is 10.5cm, the width is 1cm and the height is 1cm. This product is perfectly suitable compatible repair shop, car plant and more. Item Name: Voltage Test Pen Material: Copper Measuring Range: 6-24V Features: Precise, Compact, LED Light Size Details: Voltage Test Pen: 10.5cm x 1cm x 1cm/4.13" x 0.39" x 0.39"(Approx.) Extension Cord Length: 65cm/25.59" (Approx.) Notes: 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. Package Includes: 1 x Voltage Test Pen