Induction pen alarm multifunctional industrial testing universal testing pen high-precision circuit testing pen

When the pen tip detects a voltage, it emits light. Built-in highlight LED with white light can also be used as a simple flashlight. Non-contact, sealed with integrated insulating plastic, safe to use. Long service life and low power consumption. Easy detection of current flow and easy identification of which line has a dangerous voltage. The non-contact voltage testers are easy to use. Simply touch the tip of a terminal block, socket or power cord. If the tip lights red and the device beeps, you know that there is voltage. Ideal design for testing power cables, circuit breakers, wall sockets, junction boxes, fuses, etc As long as the non-contact test pen detected voltage, the LED light in the white tip will light on, "Beep" sound and red flashing LED would indicate the presence of voltage Totally insulated, no exposed metal or conductive parts When the pen head and detects voltage, the white part of the pen head will glows and beeps. It is easy to detect wire and know which line have danger voltage. There is a button in middle of the inductions pen. When you press it, there is a bright LED at of the pen that will glows. In a dark working place, you can easily complete the work.