An adaptor 300 for connecting a sampling plate 100 for receiving a liquid substrate to be tested to a measurement device 200 operable to display, or to both measure and display, one or more selected properties of the liquid substrate preferably the glucose levels in a blood sample. Preferably, the adaptor 300 comprises a processor for managing two-way communication between the sampling plate 100 and the measurement device 200, which are otherwise incompatible. The sampling plate 100 may comprise a sample zone with at least two discrete testing zones, wherein the sample zone is arranged, in use to separate the liquid substrate into at least two discrete samples, such that each sample occupies a respective testing zone. Preferably, the measurement device 200 is operable to communicate with the sampling plate 100 to measure and/or display one or more selected properties of the liquid substrate wherein the adaptor 300 may comprise an information tag which communicates information about the sampling plate100 to the measurement device 200. The adaptor 300 may also be arranged to be connectable with a computer preferably via a USB port.
