Product Description: Ensure the efficiency and safety of your vehicle's electrical system with the Digital Automotive Power Probe Circuit Electrical System Tester. This multi-function diagnostic tool is designed for comprehensive testing of automotive circuits to provide you with precise and reliable results. Main Features: Multi-function Testing: The tool offers a wide range of functions, including voltage detection, diode detection, continuity test, ground detection, short circuit tracing, positive and negative detection, overload protection, and lighting. It is the ultimate tool for diagnosing and repairing vehicle electrical problems. LCD HD Display: The HD LCD screen displays clear voltage readings. When the probe detects the positive pole, the red LED indicator on the front lights up at the same time and the blue voltage indicator lights up at the same time. For the negative pole, the green LED light lights up together with the blue voltage indicator to ensure that the results are accurate and easy to read. Lighting Design: The tester is equipped with a built-in light, which allows maintenance and repair work even in low light conditions. It is ideal for use at night or in dimly lit areas. Wide Compatibility: Supports all electrical system tests from 3.5V to 36V, suitable for a variety of vehicles, including cars, pickups, SUVs, motorcycles, engineering vehicles, and ships. Service Description: Product Name: Car Circuit Tester Product Number: CNBJ-823 Color: Blue DC Voltage Range: 3.5-36V Overcurrent Protection: 8A Rated Current: 1-8A Accuracy: 2% Cord Length: 4.5m Operating Temperature: -10 to 60/-4 to 158 Relative Humidity: < 80% Product Dimensions: Approx. 26 x 4 x 2.8cm/10.23 x 1.57 x 1.10in Total Weight: 390g/13.75oz Package List: 1 Car Circuit Tester 1 User Manual Easily diagnose and repair your vehicle's electrical system with the Digital Car Power Probe Circuit Electrical System Tester. Its versatility and high-resolution display make it a must-have tool for any mechanic or DIY enthusiast. Order now to ensure your vehicle's electrical system is in top condition.