5Pcs LED Voltage Test Pen Multifunctional Electrical Tester Home Pocket Electric Circuit Detector

General description This multifunctional LED voltage test pen is designed for easy and accurate electrical testing. It can be used for neutral live wire judgment and line on and off detection, featuring a self-test function for added reliability. The pen's transparent shell houses a high-brightness LED lamp bead, making measurements intuitive and straightforward. Technical specifications Measuring range: 70-250V Pen head diameter: 3mm Usage Neutral live wire judgment Line on and off detection Convenient for disassembly and assembly tasks