This car test pen integrates multiple functionalities such as short-circuit testing, open-circuit detection, and wire tracking, all in one device. It effectively identifies circuit problems, accelerates automotive troubleshooting and repair processes, and enhances maintenance efficiency. The tool also features an illumination function and bi-polarity test functions. With a versatile operating voltage range from 4VDC to 75VDC, it is universally compatible with all vehicle electrical systems within 6/12/24/48V. This is an indispensable professional tool for automobile repairs and maintenance. Features: Multi-functional Circuit Diagnosis: Combines short-circuit testing, open-circuit detection, and wire tracking. It effectively identifies circuit problems, accelerates automotive troubleshooting, and enhances maintenance efficiency. Equipped with an illumination function for various complex maintenance environments. LCD Backlit Display: A backlit LCD display provides easy reading even in low light conditions. Real-time voltage measurements are accompanied by audible beeps for intuitive and immediate understanding of test results. Humanized Design: The soft rubber handle ensures a comfortable, anti-slip grip, suitable for prolonged use and durability. A versatile 3.6-meter flexible, retractable cable expands the scope of testing. Includes an anti-loss probe protecting sleeve and a robust large-sized alligator clip for improved operational safety and practicality. Bi-polarity Test Function: Uses distinct red and green LEDs for instant and intuitive differentiation between positive and negative poles, allowing for quick and error-free polarity testing. Wide Applications: Compatible with operating voltages from 4VDC to 75VDC, making it suitable for all vehicle electrical systems within 6/12/24/48V. It is an essential tool for professional automobile repairs and maintenance. Specifications: Name: Test Pen Material: Plastics Voltage ranges: 4-75VDC Resolution: 0.1V Accuracy: 4-75V (1%+3 digits) Operating temperature: 0-50℃ Operating humidity:
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