When ordering meters and tools, most of DigiKey’s off the shelf stock do not have calibration certificates. If you are in need of a certificate, you will want to state that at the time you order the product so the certificate can be supplied along with the item direct from the manufacturer. This may result in an additional charge and lead time for the item. If you already have a tool or meter that needs calibration, you will need to send that to an independent certified calibration service.