- Lightweight and Compact Design: This sensitive electrical tester pen is designed for 3-24V testing. Its compact size allows for easy access to tight spaces, making it an ideal tool for electricians and DIY enthusiasts. - Precision and Durability: Equipped with a spring wire and anti-breakage protection, this tester pen is built to last. The robust black spring cord cover protects the wire, while the LED digital display provides accurate voltage readings, ensuring reliability in all your testing needs. - Portable and Convenient: Smaller and lighter than traditional probes, this electrical tester pen is easy to carry, fitting seamlessly into toolboxes or storage areas without taking up much space. - User-Friendly Features: The ergonomic handle and metal clip provide a secure grip on the positive line, preventing loosening during use. Additionally, the design incorporates line protection for enhanced safety while operating. - Practical Applications: - Ideal for troubleshooting electrical circuits in residential or commercial settings. - Useful for testing batteries, power supplies, and household appliances to ensure they are functioning correctly. - Perfect for automotive work, allowing quick voltage checks on vehicle electrical systems. This electrical tester pen combines functionality, portability, and durability, making it an essential tool for anyone working with electrical systems.