All of our New PAT testers are tested and calibrated by the manufacture at the end of the production line, to meet their published specifications and accuracies, but they don't normally issue a Calibration Certificate. If your Quality systems insist that any test equipment used within your organisation has a valid Calibration Certificate then this option is for you. New PAT tester Calibration Certificates can form a vital link in your quality procedures for any portable appliance tester.