The sensor electronics itself stores all sensor related data, like calibration values or functional parameters. In addition, personal data like sensor name, laboratory or anything else can be stored into the nonvolatile memory of the sensor. Every sensor has a unique ID and can be identified at all time.
Actual measurements are shown on the color display as numbers and graphs (history or trend) in real time. All measured data (from many environment monitors if needed) can be stored into a SQL-Satabase in the network or be recorded locally (USB-stick).
Later on, this data can be evaluated using standard number tools.