I'm currently working on a project which requires a few hundred of temperature and humidity sensors to be placed around a glasshouse. From reading other posts and forums, I found out that many sensors have an offset in their calibration and that manual calibration is needed to correct for this.
Obviously for my project, I cannot manually calibrate a few hundred sensors. I've found a few sensors that claim to be 'factory calibrated' such as the DHT22, SHT31, BME280 and Si7020 but a quick google search shows that someone has already had calibration issues with it.
On the top of that, the glasshouse is expected to run in the range between 60-90%RH which is decently high in humidity. So I would think that sensors may end up getting damaged over the long run.
So my question is, how would you tackle the issue of mass calibration and are temperature and humidity sensors able to work in such conditions?
Links to datasheet: