Universal Compatibility: Designed to work seamlessly with all 3.5 - 36V electrical systems, this tester is perfect for a wide range of vehicles including cars, pickup trucks, SUVs, motorcycles, construction vehicles, and boats. Its broad compatibility ensures versatile use across multiple automotive and marine applications, making it an essential tool for comprehensive electrical system diagnostics. Built-In Front Lighting: Featuring an integrated front lighting system, this tester provides clear visibility in dim or dark environments. This thoughtful design allows users to perform vehicle maintenance and electrical testing at night or in poorly lit spaces with ease and precision, enhancing convenience and reducing the risk of errors during inspections. High-Precision Measurement: Equipped with advanced sensing technology, this automotive relay tester accurately detects both standard vehicle currents and subtle current fluctuations. This precision enables detailed circuit diagnosis, helping users identify faults quickly and ensuring reliable results for effective troubleshooting and repair. Rugged and Durable Construction: Crafted from high-spec impact-resistant and waterproof materials, this circuit fault probe tester is built to endure harsh working conditions. Its robust design guarantees stable performance even in demanding environments, providing long-lasting durability that professionals depends on during rigorous fieldwork. Compact and Portable Design: With its lightweight and space-saving construction, this tester is easy to carry and store. Ideal for on-site repairs, mobile maintenance tasks, and various working environments, its portability ensures that users can conveniently bring it wherever needed without sacrificing functionality or reliability. Description: This automotive relay tester offers universal compatibility with 3.5-36V electrical systems, making it ideal for cars, pickup trucks, SUVs, motorcycles, construction vehicles, and boats. Equipped with built-in front lighting, it ensures clear visibility in low-light conditions, simplifying nighttime vehicle maintenance. The high-precision measurement feature accurately detects both standard and subtle current fluctuations for reliable circuit diagnosis. Crafted from impact-resistant, waterproof materials, this durable tester withstands harsh environments while delivering consistent performance. Its compact, lightweight design makes it easy to carry and store, perfect for on-site repairs and mobile maintenance tasks. Item Name: Tester Material: Plastic External Power Supply: 12V or 24V D.C Power Provided by Vehicle Battery Overload Protection Current 8A D.C Voltage Range D.C 6-24V Rated Current: 1-8Amp Features: Compact, Portable, Universal Size Details: A, Host, Length: 26cm/10.24", Extension Cable Length: 45cm/17.72" (Approx.) B, Host, Length: 26cm/10.24", Extension Cable Length: 40cm/15.75" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Tester