How do I adjust the temperature/total gap? (F2)

Press on the °C/°F button for 3 seconds, screen will display F1.
Press again for 3 seconds, it will display F2. Then press briefly on the °C/°F buttong in order to increase the gap by 32.2°F / 0.1°C or on Mode to diminish by 32.2°F / 0.1°C.
Confirm your new setting by pressing the °C/°F button for 3 seconds in order to show the next menu (F3).
If you're not sure, it is advised to keep the original parameter at + 32°F / +0.0°C.
For each significant change in ambient temperature between ±50 °F / ±10°C, let MyThermo acclimate to the ambient temperature for at least 15 minutes before its use, in order to let the device recalibrate