HD Electric Hi-Test® Insulator Tester – IT-4

HDE Hi-Test® Insulator Tester – IT-4


The Hi-Test® IT-4 Insulator Tester detects non-visible insulator failures before they cause operations difficulties or safety threats to line crews. The Insulator Tester can be used as a routine maintenance tool to test insulators quickly, safely and reliably. It can be applied to any in-service transmission or distribution insulator and at any voltage, provided there are two or more insulators between conductor and ground. It can also be used to test de-energized insulators prior to installation.


  • Universal spline for attachment to a hotstick
  • Built-in gigohmmeter applies a current limited 10kVDC potential across an insulator
  • Buzzer provides audible warning of bad insulators
  • LED scale displays the condition of the insulator being tested
  • Powered by an 8VDC rechargeable battery
  • Rugged carrying case included
  • Lightweight – weighs approximately 3 lbs. (1.35 kg)

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