- Locates 110V to 125VAC circuit breakers and fuses; variable sensitivity adjustment pinpoints correct circuit (Extech)
- Detects common wiring faults on 120V outlets; identifies open neutral and open ground (Klein Tools)
- Tests GFCI operation including trip time display and auto-hold feature (Klein Tools)
- Bright red and green LEDs indicate correct wiring or fault conditions (Extech)
- Includes 9V battery, convenient storage, 6.6-foot drop protection (Extech and Klein Tools)