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Polarity Test Pen
Check which LV conductors are live before work starts with a self-testing system that discriminates between individual conductors, even in bundles.
Lights up and buzzes only within 3mm of a live conductor core
Checker confirms correct operation before and after each test
Self-powered, portable and easy to use
Used by electrical engineers working in bundles of cables and crowded enclosures, the Polarity Test Pen gives total confidence when looking for live conductors.
The Polarity Test Pen is a live conductor tester for electrical engineers working on low voltage equipment, including bundles of cables and crowded enclosures. It lights up and buzzes when it detects the electrical field surrounding a live LV insulated conductor, without needing current to flow in that conductor, so live and non-live conductors can be identified before work begins.
Supplied with the Test Pen Checker as the Polarity Test Kit, the pen can be confirmed as working before and after every test. The checker simulates the field produced by a live LV conductor and doubles as a protective carry case. Powered by two AAA batteries, the pen works with all standard 220-250V 50/60Hz supplies.
Precise live conductor detection
Activates only within 3mm of the live core of a standard conductor, isolating individual conductors in bundles.
Self-testing for confidence
The Test Pen Checker simulates a live conductorโs field to confirm the pen is working correctly.
Rugged and portable
Pen-style construction with pocket clip, daylight LED illumination and an audible buzzer.
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Frequently asked questions
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