- Effortless Testing: Gain confidence in your relay diagnostics with our Relay Tester. The red LED indicates failures, while the green LED confirms normal performance. Quickly assess data, closing time, and relay inertia with accurate results tracking. - Durable Construction: Crafted with high-quality materials and exceptional workmanship, this Relay Tester ensures reliable performance. Its robust design is odor-free, making it safe for automotive relay testing. - Portable Convenience: This compact and lightweight relay tester seamlessly fits into your daily routine. Whether at home, school, or on the go, it is your reliable companion for straightforward diagnostics. - Ideal Gift: Offer peace of mind to loved ones on special occasions like birthdays, Father's Day, or Christmas with this essential relay tester kit. Help ensure their vehicle operates smoothly and safely. - Versatile Applications: Perfect for automotive enthusiasts, this tester is suitable for checking car relays, motorcycle systems, and even household appliances. Its user-friendly design makes it easy to use for both professionals and DIYers alike.