The Data stick is a portable data storage unit. It connects to the 15 pin multipurpose connector on the side of your Centor. Pushing one button on the Data stick will transfer the latest reading or calculation to a flash data card in the Data stick. The storage capacity of the Data stick depends on the size of the flash memory card. The card can be removed at a convenient time and installed in your computer card reader to recover the data. The Data stick can also store the Centor configuration for fast reprogramming of the Centor should it be necessary.