Voltage Tester Pen Jonnesway AR030003 — Needle Probe 6–24V

The Jonnesway AR030003 needle probe voltage tester is a compact pen-style tool for detecting DC voltages from 6 to 24 V. Its sharp insulated needle tip provides access to tight points, wire strands, and small terminals without significant disassembly. The tester indicates the presence of voltage with a built-in lamp visible through the transparent handle and is intended for quick checks on low-voltage automotive and electronic circuits, sensors, and wiring during maintenance and troubleshooting.

Advantages

The tester combines a narrow needle tip with a transparent ergonomic handle that houses a visible indicator light, enabling precise contact and immediate visual confirmation of voltage presence. Its slim pen form factor makes it easy to carry in a pocket or toolkit and to use in confined spaces. The simple design requires no batteries for basic detection if it is a neon-style indicator, and the insulated shaft improves safety when probing live low-voltage circuits.

Suitable for

• Testing 6–24 V DC automotive circuits and motorcycle wiring
• Quick checks of sensors and low-voltage electronic modules
• Verifying presence of voltage on connectors, wire ends, and terminals
• Basic troubleshooting during maintenance and repair of vehicles and small electronic devices

Key specifications

• Voltage detection range: 6–24 V DC
• Probe type: sharp insulated needle tip for access to small contact points
• Indicator: built-in lamp visible through transparent handle for voltage presence
• Form factor: pen-style, compact and pocketable
• Intended use: low-voltage automotive and electronic circuits

How to use

Hold the tester by the insulated handle and carefully insert the needle tip to make contact with the conductor or terminal to be tested. Use the vehicle chassis or a known ground as the reference point if required. Observe the indicator lamp in the transparent handle—illumination signals the presence of DC voltage within the tester’s detection range. Withdraw the probe after testing and store it safely in a toolbox or pocket.

Usage recommendations

Before testing, ensure work area safety by switching off high-voltage sources and wearing appropriate protection. Use the Jonnesway needle probe only within its specified 6–24 V DC range and avoid applying it to high-voltage circuits. For accurate diagnosis, combine voltage presence checks with other test methods and consult vehicle or device documentation when uncertain.