Safe Isolation Saves Lives

We are the UK market leader in Voltage Indication & Proving Units for Electrical Safety

Outperform the rest with the CM series

CM69 measures up to 18th Edition leakage current limits

Be Confident in your test results

Be Confident in your test results

Smaller, lighter and with new options for calibration checking test equipment, Martindale’s PDSX proving units not only give your confidence in safety critical voltage measurements, they can also be used to validate the performance of 18th Edition multifunction...

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Nuisance RCD tripping a problem?

Nuisance RCD tripping a problem?

Ever had a problem with nuisance RCD tripping? It’s one of the most common faults, often leading to repeat call outs. A good quality leakage clamp meter and some background knowledge can save a lot of time and frustration in fixing the problem. Modern appliances and...

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New proving units verify safety and calibration in one

New proving units verify safety and calibration in one

Smaller, lighter and with new options for calibration checking test equipment, Martindale’s next generation proving units enable contractors and maintenance teams to safely and simply prove the operation of voltage indicators, two pole testers and test lamps plus...

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