Key features

• •🔥 ALL-IN-ONE AUTOMOTIVE WIRE TRACER & TESTER: This professional DC 6-42V circuit tester is a must-have for automotive repair, home wiring, and industrial maintenance. It effortlessly locates circuit breakers, traces broken wires, detects current leaks, and tests continuity—all without damaging wire insulation. The perfect open & short finder for electricians, DIYers, and auto technicians to solve electrical faults in minutes.
• •💡 INTUITIVE SOUND & LIGHT SIGNAL INDICATION: Equipped with a high-sensitivity transmitter and receiver, this circuit breaker finder tool delivers crystal-clear test results via bright LED lights and distinct beeping tones. A built-in low-battery indicator (flashing red light) prevents unexpected shutdowns mid-test. Its anti-interference design eliminates background noise, ensuring you get accurate readings every time with zero guesswork.
• •🎯 PRECISE OPEN CIRCUIT & BREAKER POINT LOCATION: Easily pinpoint open circuit breakpoints using the adjustable sensitivity feature (3 modes). Set the transmitter to the down position— a flashing green light confirms an open circuit. The receiver emits a full signal and rapid beep in normal areas; the signal weakens or vanishes exactly at the breakpoint for precise fault localization.
• •⚡ RAPID SHORT CIRCUIT DETECTION: Identify short circuits instantly with this efficient circuit short finder. With the transmitter down, a flashing red light alerts you to a short circuit. The receiver will display a solid red light and continuous rapid beeping at the short location, while showing no signal in normal circuit areas—making diagnostics fast and error-free.
• •✅ EFFORTLESS CONTINUITY TESTING MODE: Simplify wire integrity checks with the dedicated CONT mode. Just attach the red and black test clips to both ends of the wire. A steady green light means the wire has perfect continuity; no light indicates a faulty or broken connection. This user-friendly feature makes it ideal for quick wire checks on cars, trucks, and household appliances.