Topdiag P100 Automotive Circuit Tester, 12V/24V Power Circuit Probe Tool

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• 【 Professional Automotive Circuit Tester for 12V/24V Diagnosis 】 Topdiag P100 is designed for 12V cars, motorcycles, and 24V commercial vehicles. This automotive circuit tester combines DC voltage, polarity, continuity, resistance, AC signal testing, component activation, and power/ground testing in one handheld power circuit probe tester for efficient vehicle electrical diagnosis.
• 【 Four Testing Modes for Efficient Diagnosis 】 Topdiag P100 provides four modes: DC voltage, AC voltage, resistance, and tone. DC mode measures voltage, AC mode supports frequency-related checks, resistance mode verifies circuit continuity, and tone mode provides audible feedback for faster diagnosis in hard-to-see areas.
• 【 Clear TFT Display & Essential Circuit Checks 】 This car electrical tester supports DC voltage, polarity, resistance, continuity, AC signal testing, trailer light testing, and ground/short circuit checks. The TFT color LCD and LED indicators provide clear readings and polarity feedback in garages, engine compartments, and hard-to-reach areas.
• 【 AC Signal Testing for Vehicle Circuits 】 With a 0Hz-10kHz tone frequency response, Topdiag P100 helps inspect AC signal circuits, including MAP sensor signals and other electronic circuits during vehicle diagnosis.
• 【 Open Circuit Tester with Built-In Protection 】 The auto circuit tester probe helps locate wiring faults, short circuits, open circuits, and poor grounding issues. Built-in 1-10A circuit breaker protection helps reduce overload risk during component activation and circuit testing.
• 【 32FT / 10 m Extended Cable for Trucks & Trailers 】 The included 10 m / 32FT extension cable gives this car circuit tester extra reach along long vehicle frames and rear wiring areas. It is suitable for trucks, commercial vehicles, trailers, tail lights, trailer plugs, and other hard-to-reach wiring points.
• 【 Daily Repair & Wide Vehicle Application 】 Powered directly by the vehicle battery, Topdiag P100 is suitable for garage repair, workshop diagnosis, roadside checks, 12V cars, motorcycles, 24V commercial trucks, trailers, and low-voltage vehicle electrical circuits. Do not use it on high-voltage battery circuits.
• 【 1-Year Warranty +24 Hours Service 】 We provide a solid 1-year warranty service and a 60-day no-reason-asked return and exchange guarantee.Our tech support is available 24/7 to quickly resolve quality issues, usually within 24 hours.With worry-free protection throughout the process, you can enjoy a peace-of-mind experience to the fullest.