Electronics Fluke

Fluke 1AC II VoltAlert Non-Contact Voltage Tester

Tells you if a wire is live before you touch it — without touching it.

Non-contact voltage tester glowing red next to wiring in an electrical panel

Fluke

1AC II VoltAlert Non-Contact Voltage Tester

Kraang Finds

Best for Checking outlets and cablessafety before any mains work

The most important electrical tool is the one that tells you a wire is live before your hand gets there. Hold the tip near an outlet, a cable or a switch and it lights up and beeps if there’s AC voltage. It’s pocket-sized like a pen, and its continuous self-test helps you trust that it’s working — though checking it on a known live circuit is still the safe habit.

Pro tip Test it on a circuit you know is live right before and after checking the one you’re about to work on. That two-second habit is what makes a “no beep” trustworthy.

Why we like it

✓Detects AC voltage without touching bare metal
✓Tip glows red and it beeps, so you know at a glance
✓Continuous self-test helps confirm the tester is working

Keep in mind

!AC only — it won't detect DC, batteries or low-voltage circuits
!A yes/no tester, not a meter — it doesn't tell you how many volts

Detection range: 90–1000 V AC
Alerts: Red tip light + beeper (silent mode)
Self-test: Continuous
Rating: CAT IV
Weight: 59 g

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