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Multi-function Installation Tester


The CZ20500 Multi-Function electrical tester includes some of the latest advances in electrical testing, combining 5 instruments into 1! Insulation, Loop, Phase, RCD, and Voltage testing are all included in the one instrument, making your job of installation testing easier. It is the perfect tool for certification of domestic, commercial, and industrial fixed wiring installations as required by Australian standards.It features large-scale integrated analogy circuits, digital circuits and a microcomputer chip combination. The CZ20500 has multiple functions, higher accuracy and a more stable performance than its competitors, as well as a reliable and convenient mode of operation.It can be used to measure residual current devices, electric leakage protectors and the insulation of various electrical equipment, as well as performing grounding continuity tests.


  • Insulation Resistance Testing
  • Continuity Testing
  • Line/Loop Testing
  • Non-trip Loop Testing
  • RCD Testing
  • Phase Rotation Testing
  • Voltage Testing
  • Testing AC and DC Voltage


  • 5 instruments in 1
  • Reliable
  • Highly accurate