AC Voltage Tester Screwdriver Pen with LED Indicator

A screwdriver-style tester for a quick live check on AC mains wiring: touch the tip to a wire, socket or switch terminal and the LED in the handle lights when AC voltage is present.

Key features

• Battery-free: the indicator is powered by the circuit under test
• Flat screwdriver tip doubles as a driver for terminal and small hardware screws
• Insulated handle
• Handy for checking a bench socket or a charger's AC lead before you work on it

It detects AC only and will not test the DC voltage of a LiPo, a power supply output or a drone circuit; use a multimeter or cell checker for those. It shows that voltage is present but gives no reading, and it is no substitute for switching off and isolating the supply before working on mains wiring.