The Klein 69127 is a tester designed for automotive and truck electrical systems, motor field coils, radio and low-voltage circuits, ground circuit of all lamps, wiring, fuses, etc. This tester features a high impact 3-3/4" probe for easy and quick in identifying the problem. It also has a lead length of 36" for convenience of testing operation. Additionally, this tester has an overall length of 43.25-inch. Klein Tools is the world leader in the design and production of quality products. In cooperation with Klein Tools, we at PlumbersStock carry high-quality and reliable products for a very affordable price. Grab yours now here at PlumbersStock.