To locate the device serial number on your Ketone Breath Meter, look at the connectivity status bar near the top of the screen during the warm-up step of a breath test. This serial number is essential if you need technical support. If you encounter any issues, please take a screenshot of the warm-up screen showing the serial number and email it to service@reflexwireless.com.

Find Ketone Meter serial number

How to take a screenshot:

  • Android: Press the Power + Volume Down buttons simultaneously for 1–2 seconds (varies by device). Some models also allow a three-finger swipe down on the screen.

  • iPhone:

    • iPhone with Face ID: Press Side Button + Volume Up simultaneously.

    • iPhone with Home Button: Press Home Button + Side (or Top) Button simultaneously.
      The screenshot will be saved in your device’s Gallery/Photos app, ready to attach to your email.

Finding the device serial number of your Ketone Breath Meter