Responsive Electrical Tester Pen

This is the perfect addition to your kit with our responsive electrical tester pen.

Our tester pen is composed of a high quality and durable PVC Handle, screw rod, slotted point screwdriver, nut, spring, neon bulb tube, and resistance block, which ensure safety while using.

In self-check before use, please hold the pen tip with one hand and touch the tail with the other hand. When the light is on, it means the tester pen is normal and has sufficient power. No light indicates that the battery needs to be replaced.

One hand touches the bottom of the pen, and the tip of the pen touches the wire. The breakpoint is where the light goes out. It is used to find breakpoints in daily household appliances such as rice cookers, computers, plug-in boards, etc.