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Pulsed DC porosity testers
The Gatronic Holiday Detector
The Gatronic H.V. Holiday Detector generates pulses at a nominal 30 Hz which are transformed within the probe handle to 25KV peak max.
P20 & P40 Pulse Porosity Detectors
Can be used in accordance with AS3894.1 and Nace Standards: SP0490; RP0274 & SP0188.