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Insulation Resistance Tester - Analogue


Lightweight and easy to use, the CZ20055 provides user selectable voltage outputs of 250V, 500V and 1000V for M testing, with 3 and 5000 testing also available for terminal connections. Continuity testing is also provided for basic connectivity testing.The illuminated analogue display of Aegis Insulation Tester means that you can see results at a glance. The lock button feature will hold the last reading in place until reset, allowing you the time to make a detailed recording of the results. A live circuit warning LED and hazardous voltage alarming are provided as standard to alert the user if accidental connection to a live circuit it made prior to conducting any testing.


  • Insulation (megger) testing
  • Testing of terminal connections
  • Continuity testing
  • IR testing at 250V, 500V, & 1000V


  • Easy to read illuminated analogue display
  • Live circuit warning
  • Hand held or free standing operation
  • Comes in protective carry case
  • Includes probe leads and a lead with alligator clamp
  • Meets EN61326 and EN61010-1 requirements
  • In IEC 61010: CAT III 1000V