- Multi-functional Circuit Diagnosis: This tool combines short-circuit testing, open-circuit detection, wire tracking, and more into one device. It effectively identifies circuit issues, streamlining the automotive troubleshooting and repair process, and improving maintenance efficiency. The built-in illumination feature makes it suitable for various complex maintenance environments. - Ergonomic Design: Designed for comfort, the soft rubber handle provides an anti-slip grip for extended use and durability. It features a 3.6-meter flexible, retractable cable, expanding your testing range significantly. An anti-loss probe protecting sleeve and a sturdy, large-sized alligator clip enhance operational ease and overall functionality. - LCD Backlit Display: The backlit LCD display ensures clear visibility in low light, while real-time voltage measurements paired with audible beeps allow for immediate and intuitive understanding of test results. - Bi-polarity Test Function: The bi-polarity test function uses distinct red and green LEDs to easily differentiate between positive and negative poles, enabling quick and accurate polarity testing. Use Scenarios: 1. Quickly diagnose electrical issues in vehicles during routine maintenance or inspections. 2. Track down wiring faults in complex automotive systems, ensuring efficient repairs. 3. Utilize in low-light conditions to troubleshoot circuit problems effectively, making it ideal for garage or workshop settings.