Voltage Tester Pen
Shenzhen UYIGAO Electronic Technology Co., Ltd (UYIGAO)
A non-contact voltage tester is the safest way to make sure the power is off without touching any wires. Before you open an electrical box, you should: - cut off power to the outlet at the main electrical panel - confirm you turned off the right circuit This is where the non-contact voltage tester comes in handy.
