Record: Date, time, air reading, bed reading, corner reading, stage of crop, and any set point you changed.
Put one thermometer in the room air and one probe in the bed.
Read both at the same minute, morning and evening, for a week.
Note the gap between them and how it changes with the flush.
Read the far corner of the room as well as the near one.
Write your set point beside the DMR band for that stage.

