Checkline DC Holiday Detector

Brand: Checkline
Model: DC Holiday Detector

High Voltage DC Porosity detector also known as holiday detectors, spark testers, porosimeters or jeepers. 

Product Information


These are used to ensure the longevity of coating systems by locating pin holes, air bubbles, and porosity in non-conductive coatings on conductive substrates, including concrete. Suitable for production pipeline coating operations, tankwork and structures. Ideal for use on storage tanks, valves and pipelines.


Light weight ABS case
Digital display of applied voltage with integral battery condition indicator
Regulated DC voltage
Momentary on-switch allows for automatic shut-off
Voltage ranges of 0 to 15kV or 0 to 30kV, fully adjustable
Clip-on battery pack
Constant test current
Sensitivity control
Overcharge protection
Single power supply
Earphones for noisy environments
Optional on/off switch in handle