Features: The P100 circuit tester is a versatile automotive diagnostic tool that accurately measures voltages (5V-40V), resistance (up to 2000Ω), and continuity, making it essential for diagnosing electrical issues in vehicles and ensuring efficient repairs. This electrical tester features a highly definition LCD display for clear real time readings, a rapid response time under 0.5 seconds, a lightweight anti slip grip for comfortable handling. Designed for professional mechanics in auto repair shops, car enthusiasts, this tool empowers users to troubleshoot electrical systems, perform maintenance, and enhances their automotive knowledge with ease. Use this voltages tester in workshops for quick fault detection, or on the road to identify circuit problems like shorts or opens, reducing delays and improving travel safety. With high conductivity metal probes, reinforced cables for stable connection, and built in overload protected, this automotive diagnostic tool delivers precise, safe measurements even in harsh conditions, boosting accuracy and user confidence. Specifications: Component: plastic Size:Approx.21x4.2cm/8.27x1.65inch Color: black Voltages: 5-40V Working current: 40mA Activation current: 0-8A Measuring voltages ranging: 0.1V-100V Measuring resistance ranging: 1Ω-220Ω Operating temperature: 0-60°C (32°~ 140°F) Storage temperature: -20℃-70℃(4°~158°F) Package Includes: 1 Set Automotive Electrical Diagnostic Tool note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.