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Quantity
1
Description
How The Tone Works
The Tone Device measures breath acetone, a ketone produced during fat metabolism.
Breath acetone has been widely studied as a non-invasive indicator of nutritional ketosis, allowing users to track metabolic changes withou...
Reviews
4.7
7 ratings
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Its consistently accurate- it is a great monitoring device for fitness junkies like me to track our progress.
A
Ali · May 16, 2025
I have had the Tone device for about a week and it has really helped me stay on track with my food choices. I'm a numbers girl and I love seeing the ketones go up every day! Understanding how those numbers relate to my food choices really works for me and keeps me headed in the right direction. I love it!