1. Improved Test Efficiency: Seamless evaluation of relay performance; green LED confirms functionality, red indicates failure – effortlessly track contact data and timing. 2. Exceptional Quality: Our relay tester is crafted with the precision and finest, durable materials, ensuring flawless performance. It is unbreakable, odorless, and safe to use. You can rely on it for testing automotive relays. 3. Easy to Transport: Conduct efficient tests on your electrical systems effortlessly with this relay tester. Its compact and lightweight design makes it the travel companion, easily carried anywhere, whether at home or school. 4. Gift: Surprise your loved ones with this essential relay tester car set on special occasions like weddings, graduations, or anniversaries, ensuring their car runs smoothly every time.