- When the device is powered off, press and hold the measurement button for 8 seconds to enter unit switching mode. Your device is in unit switching mode when both the "℃" and "℉" symbols are flashing at the same time.
- While in unit switching mode, press the measurement button to toggle between Fahrenheit and Celsius. The symbol corresponding to the selected unit will flash.
- After selecting the unit, press and hold the measurement button for 8 seconds to exit the unit switching mode.
Reminder: If you do not press and hold the measurement button [🌡] for 8 seconds to confirm the unit selected before the screen switches off, the system will consider the switch as a failure and retain the original unit for temperature measurements.