The product is a universal 12V-24V automotive relay tester designed for passenger vehicles. It is a unit from the brand JFIND, which includes a user guide and provides features for relay and component testing. This tool is ideal for diagnosing issues with automotive circuits and batteries, offering a convenient solution for car maintenance and troubleshooting. With a focus on functionality and ease of use, this automotive relay tester is a valuable tool for mechanics and car enthusiasts looking to ensure optimal performance in their vehicles.