Test equipment

Voltage & Continuity Tester

The instrument for proving dead — a two-pole tester that shows voltage without a battery.

Photorealistic two-pole voltage and continuity tester with probes and LED indicator column

Real part — tap a marker

Voltage & Continuity Tester

The instrument for proving dead — a two-pole tester that shows voltage without a battery.

Two probes — one for each conductor, so the reading comes from the circuit
LED voltage indicators — 12 V steps up to 400 V or 690 V
Polarity indication — shows which side is live
Continuity buzzer and lamp — powered by the instrument's own battery
Single-pole phase test — only ever an indication, never a proof
Probe tips and finger guards (GS 38)

🔧 Use it while you build

Terms used here

Defined in the glossary — each one opens at its own entry.

⚠ Safety note

Proving dead is a sequence, not a poke: test the tester on a known live source, test the circuit, then test the tester on the known source again. A two-pole tester does this properly because it draws its indication from the circuit itself — a single-pole neon screwdriver or a non-contact voltstick is an indication only, and neither is acceptable as proof that a circuit is dead.

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