- After setting the buzzer (see iHealth PT2L - Adjusting the sound of the device), the LCD screen will display the current temperature unit. Press and hold the button, then enter the unit setting mode. At this point, the °C and °F unit symbols will be displayed in turn.
- Release the button when °C is displayed to set the unit to Celsius.
- Release the button when °F is displayed to set the unit to Fahrenheit.
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