Do I Need A Calibration Checkbox?
In the IEE Code of Practice 3rd edition it is now recommended that PAT testers are checked periodically to ensure that they are still in calibration between the annual calibrations and must be recorded in a register for inspection. This does not replace the requirement for an annual calibration.
The checkbox will also require an annual calibration. Page 48 section 10.6 of the Code of Practice refers.