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High voltage Holiday Detector


Detects holidays, pinholes and other discontinuities using pulse DC


  • Lightweight, ergonomic design provides comfortable all-day use, reducing operator fatigue
  • Regulated pulse DC voltage output that won't change under load— ±5% voltage accuracy
  • Voltage calculator feature—choose one of 11 international standards, and input the coating thickness to automatically calculate the required test voltage
  • Extensive electrode options—choose from a wide range of rolling spring and flat wire brush electrodes or use electrodes from other manufacturers with optional adaptors—custom sizes available upon request
  • Long Form Certificate of Calibration included with each instrument


Conforms to ASTM D4787/D5162/D6747/D7953/G62, ISO 29601, NACE SP0188/SP0274/SP0490, AS3894.1

PosiTest® HHD (เครื่องตรวจสอบรูบนผิวเคลือบสำหรับโลหะและคอนกรีต)

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