Besides the download functions within the user interface the airpointer, but also the airQlog and the airQrate, provides machine to machine protocols for data transmission.

Recommended for most application:
recordum_HTTP_Download_Interface_V2.05

When live data of the airpointer should be used in control application the ModBus protocol could be the solution to go with:
Modbus Interface

In Linsens and LinLog but also on all other kind of data, the status are displayed according to a 8-bit code. The meaning of this code is explained here: FS-BS-SS

For switching zero / span valves over the  HTTP_Download_Interface  an explaination can be found here: recordum_HTTP_Download_CaliControl.pdf