| Reading | Question answered | Common misinterpretation |
|---|---|---|
| Room air temperature | What surrounds the crop at this location? | Assuming all substrate is at the same temperature |
| Substrate temperature | What is happening inside growing material? | Treating one probe as the whole batch |
| Relative humidity | How close is this air to saturation at its temperature? | Assuming wet air means correctly watered casing |
| CO₂ and air distribution | Is gas removal reaching the occupied crop zones? | Equating a spinning fan with adequate fresh air |
In the field
Compare the evidence
