Quick voltage verification: the 1AC II detects AC voltage from 90 V to 1000 V with bright red indication and optional beeper, ideal for switches, cords, terminal strips, and receptacles.
Outlet and GFCI validation: the ST120+ identifies open ground, open neutral, reversed hot/neutral, reversed hot/ground, and performs one button GFCI tests.
Breaker tracing with audible alert: the ST120+ beeper speeds panel identification by signaling energized circuits as breakers toggle.
Pre-task jobsite checks: confirm safe conditions before replacing receptacles, opening panels, or beginning installation work.
