- Outstanding Durability: Crafted with high-quality materials and superior workmanship, this automotive relay tester kit ensures reliable performance. Its robust design is odor-free, making it safe and dependable for testing automotive relays. - Modernized Analysis: Quickly assess relay contact data, closing time, and inertia with ease. The red LED clearly indicates a failure, while the green LED confirms normal functionality, allowing for accurate and fast evaluations. - Broad Compatibility: This universal electronic automotive relay tester is designed to identify faults and malfunctions across various applications. It effectively checks 12V sensor and battery voltage, as well as vehicle battery levels, making it a versatile tool for automotive diagnostics. - Convenient and Portable: Lightweight and compact, this 12V Electronic Relay Tester is ideal for testing at home, in the garage, or even while traveling. Its portable design ensures that reliable diagnostics are always within reach. Use Scenarios: - Perfect for automotive enthusiasts performing regular maintenance checks on their vehicles. - Essential for technicians diagnosing electrical issues in cars, ensuring all relays are functioning properly. - Handy for DIY mechanics testing battery levels and sensor voltages during repairs at home or on the go.