Use the same room and sensor position. Record morning, afternoon and bedtime readings, then note what happened in the house. Partial diaries can still be sent.
01
Set up one room
Create a separate diary for each room you want to compare. All fields are optional and the draft stays in this browser until you choose to share it.
Autosaved only on this device. Nothing is sent until you open WhatsApp.
02
Seven daily records
Temperature is optional but useful. Relative humidity is the main value used in the summary below.
After the seven days
Use the pattern to choose the next inspection.
The diary helps separate recurring indoor humidity from events that follow rain, occupancy or a closed-home period. It does not prove the cause on its own.