Name: Non Contact Voltage Checker
Availability: InStock
Rating: 4.3 (884 reviews)
Author: Generatr

Non-Contact Voltage Simulator

Learn how Non-Contact Voltage Testers (NCVTs) use capacitive coupling to detect live AC voltage without physical contact. Drag the testing pen near the simulated wires below.

Tester Controls

Status

Offline

How it works:NCVTs detect the alternating electrostatic field generated by AC voltage. They do NOT detect DC voltage (like batteries) or AC voltage blocked by grounded metal shielding.

Live AC Wire (120V/240V)

Radiates alternating electrostatic field.

Neutral AC Wire

Completes circuit, usually 0V relative to ground.

12V DC Battery

Steady field, no alternation for induction.

Shielded AC Cable

Metal jacket blocks electric field.

VOLTSAFE Pro

Drag Tip Over Items

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About Non Contact Voltage Checker

Have you ever wondered how those pen-like voltage testers beep when placed near an outlet, without actually touching bare wire? It's called Capacitive Coupling. This interactive simulator lets you play with a virtual NCVT pen, dragging it over live AC wires, neutral wires, and DC batteries to understand exactly what triggers the detection circuit.

Non Contact Voltage Checker Features

Interactive drag-and-drop voltage testing simulator
Authentic synthesized audio beeping feedback
Tests against AC Live, Neutral, DC, and Shielded wires
Educational breakdown of Capacitive Coupling principles

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