- Durable and Reliable Construction: The test light features a high-quality plastic handle that offers exceptional durability along with excellent electrical and heat resistance. The probe is crafted from premium metal, ensuring wear resistance and a long lifespan. - Versatile Dimensions: The circuit tester pen measures 11cm in body length and 9cm in test head length. It includes a retractable spring wire that extends from 70cm to 150cm, providing flexibility for various testing scenarios. The measurement range of 3-90V makes it suitable for a wide range of vehicle circuits, including cars and motorcycles. - User-Friendly Operation: Equipped with an alligator clip, this circuit tester connects quickly and easily to the positive or negative ground terminal. The integrated LED polarity indicator uses red and green lights to clearly show positive and negative connections, allowing for intuitive circuit evaluation. - Compact and Lightweight Design: Featuring a smaller, lighter spiral spring wire compared to traditional testers, this tool is easy to carry and store. Its compact design ensures it takes up minimal space in your toolbox or storage area, making it readily accessible when needed. - Practical Applications: Ideal for automotive diagnostics, this circuit tester can be used to troubleshoot issues in car and motorcycle electrical systems. It’s also perfect for DIY projects and basic electrical maintenance, ensuring you can efficiently identify circuit problems and maintain your vehicle’s performance. This circuit tester combines quality materials, ease of use, and portability, making it an essential tool for both professionals and DIY enthusiasts.