Price: $89.99 - $75.99
(as of Jan 06,2026 03:21:46 UTC – Details)

【All-in-One Power Circuit Tester for 6–30V Systems】The ANCEL Electrical Tester provides a complete solution for diagnosing vehicle electrical systems, supporting Voltage & Polarity Checks, Continuity Testing, Signal Circuit Verification, Component Activation, Bad-Ground Detection, and Short-Circuit Locating with Built-in Circuit Breaker Protection. Its clear display, intuitive interface, and extended cable setup—20ft integrated lead plus an extra 20ft extension and a cigarette-lighter adapter—allow you to work comfortably around the entire vehicle. Designed for both beginners and experienced technicians, it delivers accurate, efficient electrical troubleshooting in one versatile tool.
【Advanced 4-Mode Circuit Diagnostic Tool】The ANCEL PB100 Power Circuit Probe Tool combines four essential test modes—DC Voltage, AC Voltage, Resistance, and Diode—allowing you to quickly check power, trace signals, read min/max voltage, and measure frequency, or verify ground and continuity with ease. Its intuitive buzzer function helps identify circuit conditions even in dark or tight spaces. Replacing multimeters, test lights, jumper wires, and fuse testers, this all-in-one probe gives you fast, accurate answers for most electrical issues, from battery faults to trailer lights and relays.
【Component Activation & Test】This automotive power circuit tester lets you activate and test on-board and off-board components with ease. It supports a wide range of vehicle systems, including blower motors, power window motors, windshield wipers, rear window defrosters, lights, radiator fans, and fuel injectors. By sending the required signal to each component, you can quickly determine whether it is functioning properly. Designed for both professional technicians and DIY enthusiasts, the tool works hand-held, in-vehicle, or with grounded connections, providing fast, accurate diagnostics and making electrical troubleshooting simple and reliable.
【Short-Circuit Tracking & Overload Protection】Equipped with high-sensitivity probes, this ANCEL electrical system tester quickly tracks wiring issues and pinpoints short circuits or faulty wires to save serious troubleshooting time. Its resettable 10A circuit breaker protects both you and the vehicle by cutting power and sounding a buzzer when overload is detected. When tripped, the tool will not conduct battery current to the tip until reset—helping you avoid blown fuses and unnecessary repair costs.
【Quickly Identify Polarity & Highly Sensitive Probe】The ANCEL PB100 Automotive Circuit Tester instantly checks component continuity and identifies positive, negative, and open circuits. When the positive terminal is connected, the red LED lights up with a beep; when the negative terminal is connected, the green LED illuminates with a low-pitched tone. Open circuits show no LED indication. Using red/green LEDs (active within ±0.8V) alongside the LCD display, the PB100 enables fast voltage detection—turning a simple polarity check into a reliable diagnostic tool.
【Continuity & Signal Testing】The ANCEL Electrical System Probe Tester quickly checks sensor operation and accurately verifies circuit continuity. It offers two easy testing methods: 1. Resistance Mode – A reading of 0.0Ω with the LED on confirms continuity; “OL” indicates an open circuit. You can even pierce wire insulation to test without disconnecting; 2. Power Switch Method – Apply power to the circuit; if the breaker trips, it signals low resistance and confirms continuity. Perfect for diagnosing broken wires, checking ground quality, and troubleshooting vehicle electrical systems with speed and confidence.
【20FT Extension Cable & Cigarette lighter Plug】Unlike the ordinary power tester, ANCEL Automotive Power Circuit Probe Tester comes with 20 feet long cord plus 20 feet extension cord. Combining the feature that it can be powered by the cigarette lighter, and alligator clip for convenient ground connection, you can test electrical circuit system anywhere around the longer vehicles and trailers. Extra cigarette lighter plug, no need to open the hood to connect the battery, so you can easily and quickly conduct in-vehicle circuit testing.
【Dual Headlights & Intuitive Backlit LCD Display】To be a proper solution for nighttime testing jobs, the PB100 power tester comes with a lighting function to support your testing needs in a low-light environment. What’s more, this PB100 Circuit Light Tester with highly clear LCD digital backlit display screen, a resolution of 0.1V, clear & visible digital readouts for day and night. Easy to read AVOmeter allows you to read voltage, current and resistance at the fingertip.
【Top-Ranked Automotive Electrical Tester】The ANCEL PB100 power circuit probe is one of the most versatile automotive electrical tools on the market—highly recommended by auto electrical specialists worldwide. It delivers all the functionality of premium testers like the P.P.3/P.P.4, but at nearly half the price! ANCEL Electrical System Probe Tester provides 30-day f*ree r*efunds & ex*changes, 1-year w*arranty, 24/7 professional customer service. If you have concerns about the automotive electrical tester, please reach us firstly via for assistance. We will help you till are satisfied.