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I always get surprised by how many sensor products offer temperature and humidity but not pressure, considering that combined MEMS temperature/humidity/pressure chips are available. Having a sensor which can do temperature/humidity/pressure as well as air quality/CO2 would definitely be of interest to me.

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When we started with the monitor development we looked at several temp/humidity sensors and some had pressure included. However after testing several of them we found out that the SHT series from Sensirion offers the best accuracy/calibration out of the factory. So we used them and I think they are also used in many other monitors.

Not just you.

Doing geophysical air surveys back in the day we'd record distance to ground, temp, humidity, and air pressure in order to have a running estimated mass between craft and ground to correctly scale readings such as radiometric spectrums from ground decay which weaken with mass between source (ground) and detector (craft).

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