Press and hold the power button for 3 seconds until the screen lights up. Release the button and the device is now on.

Press and hold the power button for 3 seconds until the screen is off. The device is now off.

With the device switched on, press and hold the Option button for 3 seconds. Release the button until the AP icon flashes on the screen.

With the device switched on, press the power button once to trigger a manual data sync. The G icon will flash while the data is being transferred. You can also hear the voice guidance.

Press the Option button once to toggle between the internal sensor readings and external probe readings and sensing data simultaneously.

Double press the Option button to enable or disable the voice guide. This will also refresh the last sensing data.

Double press the power button to toggle between displaying Celsius or Fahrenheit. This will also refresh the last sensing data.

Pressing either of the buttons will switch on the display backlight for a short time. Pressing both of the two buttons at the same time will keep the backlight alight constantly. Pressing another time will switch off the backlight.

Switch the device off, then press and hold the Option button and power buttons together for at least 8 seconds. Release the buttons when you hear the voice guidance “The device will now reset”.