- Precision Testing with Sharp Steel Probe: The slim stainless-steel probe easily penetrates wire insulation, allowing you to check circuitry even in confined spaces. - Durable Long Spring Wire: The long spring wire extends up to 1 meter and is designed to resist burning, ensuring stability even when exposed to increased temperatures. - Instant Feedback with Indicator Light: Equipped with a sensitive indicator light, this circuit tester pen provides immediate visual feedback. If the light illuminates, it confirms the presence of electricity. - Versatile Voltage Range: This vehicle circuit test probe pen operates within a voltage range of 6V to 24V, making it suitable for a variety of vehicles. It is ideal for diagnosing voltage regulators, fuses, switches, and identifying broken wires. Practical Applications: 1. Automotive Maintenance: Use the tester to quickly identify electrical issues in cars, trucks, and motorcycles, ensuring efficient repairs. 2. Electrical Diagnostics: Ideal for electricians and mechanics to test circuits and components during troubleshooting and installations. 3. Home Projects: Perfect for DIY enthusiasts to check wiring in home electrical systems, ensuring safety and functionality. With its reliable construction and user-friendly design, this circuit tester pen is an essential tool for anyone working with electrical systems, delivering performance and accuracy in every use.