- Real-Time Voltage Monitoring : Equipped with a precise LED digital display, this test pen provides instant voltage readings ranging from 4V to 60V DC, ensuring you can easily assess the electrical state of your circuits. - Versatile Testing Functions : This test pen is not only capable of detecting line short circuits and circuit breaks but also excels in line searching. This makes it an indispensable tool for both professionals and DIY enthusiasts to ensure safe and effective electrical troubleshooting. - Extended Reach for Convenience : With a generous wire extension of up to 300cm, you can effortlessly test electrical systems in hard-to-reach spots throughout your vehicle or home, saving you time and avoiding the frustration of cramped spaces. Key Applications : - Automotive Use : Ideal for checking the voltage levels in your car's electrical system, helping to identify faulty circuits or battery issues. - Home Electrical Testing : Perfect for homeowners looking to troubleshoot outages or identify wiring issues without needing an electrician. - DIY Projects : A must-have for hobbyists and DIYers engaged in home improvement projects that involve electrical installations or repairs. This test pen combines essential functionalities with user-friendly features, making it a reliable companion for all your electrical testing needs.