Zeta 20

Insulation Tester

Zeta 20

The Zeta 20 is an analog-digital insulation and continuity tester designed for accurate measurement of insulation resistance up to 2 GΩ with selectable test voltages up to 1000V. It also supports low resistance and AC/DC voltage measurement, making it ideal for maintenance, testing, and diagnostic applications.

Special Features

  • Insulation resistance measurement from 10 kΩ to 2 GΩ with selectable test voltage up to 1000V
  • Low resistance (LR) measurement from 0.01 to 99.9 Ω for precise continuity testing
  • Storage of Min, Max, and last 50 readings for analysis and reporting
  • Pre-selectable measurement time with stopwatch function for controlled testing
  • Safety and convenience features including fuse protection and auto power off






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