Power Probe Short Open Circuit Detector includes the following features and benefits: detects and alerts to short and open circuits. It has 20 feet power lead reaches throughout the vehicle. The 2 main tools are the transmitter and the receiver and the set comes with adapters that make connecting to any circuit quick and easy. Wires or connectors can be wiggled and flexed more to detect intermittent circuit conditions. The smart receiver"s sensitivity adjustment keeps one on the right circuit and ignores the unnecessary weaker signals. It includes: a transmitter; receiver, 3 fuse adapters, 1 universal adapter, blade probe, back probe, piercing probe, 2 AAA batteries, a 15 minute instructional video, instruction booklet and carrying case.