Roughneck Mains Tester - 140mm

The Roughneck Mains Testers are TUV and GS approved for determining the live terminal of electrica...

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B&QB&Q - Mains Tester Multi Colour (140mm)
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Product Information

Full details

The Roughneck Mains Tester is an essential tool for electricians, DIY enthusiasts, and homeowners looking for a reliable way to identify live terminals in electrical circuits. Its primary benefit lies in its simple, direct functionality, offering a clear visual indication of voltage between 100-250 Volts. While it is highly efficient for basic testing, users should note that this device is strictly intended for simple voltage presence detection and should not be used as a substitute for professional-grade multimeters when precise voltage measurements are required.

All features

Model Part Number5063750439266
BrandRoughneck

Extended Product Information

FAQs

Does this tester require batteries?

No, the Roughneck Mains Tester is a non-contact style tester that uses the circuit's own voltage to illuminate the internal neon bulb.

Can I use this to test DC circuits?

No, this device is specifically designed and rated for AC circuits operating at 50Hz.

Is it safe to touch the blade?

The blade is insulated, but you should always exercise extreme caution when working near electrical components and only touch the designated handle area.

What happens if the bulb stops working?

If the internal light fails to illuminate during proper use, the unit should be considered non-functional and must be replaced to ensure your safety.

Is this tool suitable for professional electrical work?

While it is TUV and GS approved, it is intended as a supplementary tool for basic verification and not as a primary measuring instrument.

Troubleshooting

Indicator light does not glow when testing a live circuit

Ensure you are making firm contact with the conductor and that your finger is making proper contact with the metal cap at the end of the handle, as this completes the circuit.

The tool feels dim in bright environments

Shield the indicator area with your hand to better observe the neon glow, as low-intensity lights can be difficult to see in direct sunlight or brightly lit rooms.

Pros and Cons

Pros

  • TUV and GS safety certification provides peace of mind
  • Compact 140mm size fits easily into any tool belt or pocket
  • One-piece design increases durability over standard testers
  • Clear, intuitive operation for quick live-terminal identification

Cons

  • Not suitable for measuring precise voltage levels
  • Restricted to AC testing within 50Hz frequency
  • Limited to 100V-250V range, excluding low-voltage applications

Setup, Compatibility & Care

This tool requires no setup; it is ready to use immediately out of the package. It is compatible with standard household AC circuits ranging from 100V to 250V. To maintain the tool, keep the blade clean and free of debris to ensure a solid contact point. While the handle is durable, avoid exposing the tool to harsh chemicals or extreme heat, which could degrade the transparent plastic casing. Always inspect the blade insulation for nicks or cracks before every use; if the insulation is compromised, the tool should be replaced immediately.

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