CAL1 - Feeding standard gases to the Airpointer
Calibrating the modules:
BTEX  - Calibration
CO - Calibration (API and Thermo benches)
H2S - Calibration (API and Thermo benches)
multiPM - Calibration
NOx -  Calibration (API and Thermo benches)
O3 - Calibration (API and Thermo benches)
SO2 -  Calibration (API and Thermo benches)