What is the "OFFSET" mode on the GFX3?

The GFX3 offset mode is used to match the readings of your new GFX3 to other controls in the home (humidity level, outdoor temperature and indoor temperature).

Example: Your GFX3 reads the inside humidity as 25%, but another humidistat inside the home reads 29%. Use the offset feature in the GFX3 to match the other reader. You now have consistency throughout your home.