Automotive Circuit Voltage Tester 3.5-36V DC – Battery Short Circuit Finder

• Multifunctional Tool – Supports voltage detection, continuity & diode testing, polarity check, ground detection, short circuit tracking, and component activation.
• Fast Polarity Identification – Red light indicates positive, green light indicates negative; also supports continuity testing and jumper lead operation.
• No Messing Around: Extended cable length covers the entire vehicle - simply connect clips to the car battery and begin testing circuits quickly and accurately.
• Wide Compatibility: Works with all 3.5V–36V DC electrical systems including cars, trucks, SUVs, motorcycles, boats, and construction vehicles
• Built-in Overload Protection: Auto disconnects when current exceeds 7A with buzzer alert; includes self-test function for safer, reliable operation.

The Power Circuit Tester by Rapid Revive (3.5V–36V DC) is a professional-grade automotive diagnostic tool designed to simplify electrical troubleshooting. With its multifunctional capabilities, this tester supports voltage detection, continuity and diode testing, polarity identification, ground detection, short circuit tracking, and component activation — helping you reduce diagnostic time and quickly pinpoint faults. Equipped with a bright digital display, extended cable, and built-in LED indicators, the tester allows you to work across the entire vehicle with ease. The polarity lights (red for positive, green for negative) provide instant feedback, while the overload protection feature ensures safe operation by automatically disconnecting the current when it exceeds 7A. Durable, accurate, and easy to use, this automotive device is suitable for all 3.5V–36V DC systems, including cars, trucks, SUVs, motorcycles, boats, and construction vehicles. Whether you’re a professional mechanic or a DIY enthusiast, this versatile tool is an essential addition to any automotive diagnostic kit.