The Universal Electronic Automotive Relay Tester is a versatile diagnostic tool for vehicles, including motorcycles, passenger vehicles, and heavy-duty/commercial vehicles. With the ability to test both 12V and 24V systems, this unit features an analog and digital display, as well as continuity testing capabilities. It also includes a carrying case, probes, and a user guide, making it convenient for on-the-go use. Manufactured in the United Kingdom, this relay tester is a reliable and essential tool for any garage or workshop looking to quickly and accurately diagnose issues with vehicle batteries and electrical systems.