- Outstanding Durability: Crafted from high-quality materials and superior workmanship, our Relay Tester ensures reliable performance. Its robust construction is odor-free, making it safe for automotive relay testing. - Enhanced Reliability: Instantly evaluate relay functionality with clear indicators—red LED for failure and green LED for normal operation. This tester allows for easy tracking of data, closing time, and relay inertia, ensuring accurate results every time. - Extensive Compatibility: Designed to test a wide range of automotive relays operating between 11V and 15V. This ensures your vehicle’s 12V sensor and battery voltage are functioning optimally. - Portable and Convenient: Lightweight and compact, this relay tester is ideal for on-the-go diagnostics. It comes with an easy-to-carry bag, allowing you to perform electrical system tests at home or while traveling. Use Scenarios: 1. Quickly diagnose relay issues in your vehicle during routine maintenance to prevent unexpected breakdowns. 2. Test relays at a roadside stop to ensure all electrical systems are functioning properly before a long trip. 3. Ideal for automotive professionals who need a reliable tool for swift relay assessments during repairs.