Non-conductive coatings and coverings on a conductive base, such as metal, can be high voltage tested non-destructively. Normal visual inspection can easily miss pores, cracks or other damage that are easily detected by high voltage impulses.


For damp, dirty and even only slightly conductive surfaces, ISOTEST® holiday detectors offer you the maximum test energy with the greatest possible safety – for both the tester and the test results. High voltage impulse technology coupled with patented automatic regulation keeps the test voltage stable, even in extreme circumstances. The microprocessor controlled sensitivity adapter guarantees a non-destructive test with the ideal test voltage.

ISOTEST® Industry Solutions / Test Kits

With the ISOTEST® industry solutions we offer you tailor-made packages fitted for the most diverse applications in the field of portable holiday detection.

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Testing Electrodes & Accessories

Benefit from our extensive accessories for holiday detectors.


  • testing electrodes
  • accessories for grounding
  • general accessories

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