AC Voltage Tester Pen 105-250V

Teng Tools delivers a straightforward, no-nonsense AC test instrument built for tradesmen who need a fast answer to a simple question: is this conductor live?

Rated for 105 to 250V AC, the tool covers standard 120V household circuits, 208V three-phase legs, and 240V appliance feeds — the single-phase voltages you encounter most often in residential and light-commercial electrical testing. Touch the probe to the conductor, place your thumb on the end cap, and a neon glow inside the clear handle tells you the circuit is energized. No batteries, no menus, no calibration.

At 145 mm (5.7 in) long, 33 g in weight, and 70 mm wide, it is small enough to clip to a shirt pocket with the integrated metal clip and light enough to forget it is there until you need it. The screwdriver-style form factor lets you reach into panels, boxes, and tight spaces where a bulky meter would slow you down.

This is not a replacement for a full-featured diagnostic meter. It is the tool you grab first — a two-second go or no-go check before you break out the heavy equipment. Electricians, HVAC technicians, maintenance crews, and general contractors will appreciate having a dedicated, always-ready confirmation device that takes up almost no space in a loaded tool bag.

Add it to your everyday carry and stop fumbling for a meter every time you need to confirm a circuit is hot.