CMTOOL Power Circuit Probe Tester, 9-30V Test Light Automotive, Car Fuse Tester, Voltage Tester 0.3V-70V, Circuit Breaker Finder, Component Activation Tool

About this item

• 【Probe Tester Automotive】a professional portable diagnostic tool designed specifically for automotive circuit testing and component activation. Supporting a voltage range of 9-30V DC, it's range 0.3-70V voltage measurements and 1 ~ 200K Ohm resistance measurements, short-circuit detection, and various activation capabilities. Whether it's for standard voltage testing or complex short-circuit tracing, circuit tester offers an efficient and precise solution for automotive electrical diagnostics.
• 【Component Activation & Test Function】This tool enables direct activation and testing of key electrical components—including fuel pumps, solenoid valves, blower motors, cooling fans, and headlights. Simply connect the probe to the auxiliary ground lead in voltage mode to verify component operation on the spot, eliminating the need for disassembly. With a maximum activation output of 8A, it allows you to safely simulate real operating conditions, helping for efficient, targeted repairs.
• 【Wide Application】Power Circuit Probe Tester Tool simplifies complex electrical faults into easy solutions for both Automotive Professionals, Vehicle Owner and DIY enthusiasts. Quickly powers components like fuel pumps, isolating faults in minutes without disassembly.Efficiently checks battery, fuses, and grounds, pinpointing short circuits for fast on-site repairs. Used to trailer light issues and flickering accessories, enabling quick, independent repairs.provides clear, actionable results.
• 【Quick Grounding Detection】 This function detects problems caused by poor grounding, such as dim vehicle lights, unstable electrical operation, or intermittent faults. No disassembly are required; simply connect the probe to the negative terminal of the component. A good circuit will be immediately confirmed by a green light and a beep, eliminating potential grounding faults such as loose connections or corrosion. Note: Do not press the activation button during grounding detection.
• 【Resistance Testing & Continuity Testing】 Resistance testing is used to verify component performance, analyze circuits, and conduct troubleshooting and diagnostics. Continuity testing primarily checks for open or closed circuits, verifies connections and wiring, and validates safe grounding paths. These methods are applicable for household appliance repair and DIY projects, as well as automotive maintenance—such as testing fuses, bulbs, battery internal resistance, sensors, and ignition coils.
• 【Professional Jumper Lead Function】Its features extremely low impedance and contact resistance to ensure measurement signal fidelity, standardized test current paths, and enables operators to maintain a safe distance from live or high-risk circuits. The circuit tester utilizes high-grade insulating materials, offering excellent current-carrying capacity and durability, making it a professional-grade solution that ensures test data accuracy, operator safety, and operational efficiency.

Overview

• Brand: CMTOOL
• Power Source: Ac,dc
• Style: Multifunctional Car Circuit Tester
• Color: Orange
• Item Weight: 1.6 ounces