Important Notice
This item is made-to-order exclusively for you once your order is placed. As a result, it is not eligible for cancellation or return under our standard policy. Your statutory rights remain unaffected.
Check the ongoing accuracy of your insulation tester with this calibration box from Megger.
Four resistors can be connected up to the unit, allowing a wide range of values to be checked. It is rated to high voltage, making it suitable for checking HV insulation testers which use test voltages of up to 5kV.
Supplied alongide a calibration certificate showing the actual value of each resistance checkpoint.