- Wide Application Range: Our Relay Tester is designed to enhance your testing capabilities across various applications. It effectively tests 12V sensors and battery voltages, common automotive relays, and vehicle batteries ranging from 11V to 15V, ensuring versatile usage for both professionals and DIY enthusiasts. - Effortless Testing: Evaluate relay performance with ease. The tester features a red LED indicator that signals faults and a green LED that confirms proper function. This allows for straightforward tracking of contact data and timing, facilitating precise analysis and troubleshooting. - Durability Assured: Built to last, our Relay Tester is constructed from high-quality materials known for their toughness and resilience. This guarantees accurate and reliable results, giving you confidence in your testing processes. - Convenient Portability: Designed for efficiency and ease of use, this compact and lightweight relay tester is perfect for on-the-go testing. Its portable design makes it an ideal tool for home, school, or any workshop setting. - Practical Use Scenarios: 1. Quickly diagnose automotive relay issues during vehicle maintenance to ensure optimal performance. 2. Test battery voltages in various 12V devices, allowing you to confirm functionality before installation. 3. Assess sensor outputs in automotive applications to prevent electrical failures and maintain vehicle safety.