Guildline Instruments Limited 6520 Programmable Teraohmmeter incorporates the latest technology to give Metrologists easy direct reading, high resistance measurement capabilities.


  • Resistance Mode: Range 100 kΩ to Over 10 PΩ
  • Current Mode: Range 10 µA to 100 fA
  • Automatic Sensing of Resistance Range, Integration Time and Threshold Voltage
  • Surface and Volume Resistivity Measurements with 65221 Test Fixture
  • Test Voltages 1 V to 1000 V
  • Environmental Monitoring with 65220 Sensors
  • Logging, Graphical Display and Analysis of Measurements
  • SofCal™ for On-Board Intelligence and Front Panel Calibration
  • TeraCal™ Data Acquisition Software Automates Operation
  • SCPI compliant IEEE-488.2 and RS232C Built-In as Standard
  • Rear Input Option