ST105: Standard Ratio Box for Calibration, High Accuracy, and High Stability

The ST105 is a calibration box for standard ratios.

It is used for the calibration of any turns ratio measurement system. Housed in a rugged, waterproof case, it is very lightweight.

  • Standard Ratio Box for calibration, high accuracy and high stability
  • Housed in a rugged, lightweight waterproof case
  • Standard Ratio to calibrate Turns Ratio meters
  • 5-year standard warranty