Check whether eggs are losing moisture at a useful pace.
Use weight loss and air-cell observations together instead of chasing one humidity reading.
Current loss 5.8%
Close to the expected line for this point in incubation.
6.2% target
Air-cell reading guide
Large air cells usually point toward too much moisture loss. Small air cells usually point toward too little. Confirm the pattern across several eggs before changing humidity.
Read air-cell guide