BIOSENSE® Breath Ketone Monitor
USD $299.00
- Bluetooth enabled BIOSENSE® Device with unlimited testing
- Micro USB Charging Cable
- 2 Replacement Mouthpieces
- Free app with personalized ketone data and goal tracking
- Protective neoprene sleeve
Now Eligible for FSA Reimbursement


Advanced SensorsThe BIOSENSE™ device uses patent-pending Deep Lung Sampling technology to perform breath acetone measurements. The consistent sampling of only the latter part of the exhalation enables the most accurate level of breath acetone detection for nutritional ketosis monitoring. | Elegant DesignBIOSENSE™ sleek design fits in the palm of your hand and comes with a protective neoprene sleeve, two replacement mouthpieces, and a micro USB charging cable. | Long-Term TrendsThe BIOSENSE™ app offers ketone trends, personalized insights and individual goal setting. You can see how long and deep you were in ketosis on any given day, comparing day, weeks and months of your ketosis journey. The daily ketone trends let you easily see the impact of different foods and exercise routines on your ketone levels. |
Daily Ketone ScoreThe Ketone Score is a summary of the depth and duration of your nutritional ketosis each day. The deeper your nutritional ketosis and the longer you maintain it, the higher your Ketone Score will be. In the app, we provide a default Ketone Score goal of 120. This is equivalent to maintaining a ketone level of 5 ACEs, the level where most people enter nutritional ketosis for 24 hours. | Simple, Personal TrendsTo learn about how different foods and exercise routines affect your individual metabolism, test right before and then again 1 to 3 hours after each meal or exercise session. There is no upper limit to the number of tests per day. Your BIOSENSE™ device stores 100 measurements and shows up to 10 measurements in the History, which is accessible via the MENU button. Once you connect your device to the BIOSENSE™ app, you can view all your past measurements. | Battery LifeBattery life depends on the testing frequency. With an average testing frequency of 3-5 times per day, your battery will last up to 5 days. |
BIOSENSE™ is the only breath monitor to provide this patent-pending technology. Clinical data shows a high full-day correlation between blood and breath ketones.









Chris Kresser

I enjoyed using BIOSENSE™ since I was able to truly see my numbers rise each day as I got deeper into ketosis. It really helped to hold me accountable as well. For example, I had one sugary alcoholic beverage and it took me way out of ketosis and my numbers dropped significantly. This actually helped me because it showed me that even one drink can knock you out of ketosis if it isn't within the keto diet options.
Madeline B.

After being on a ketogenic diet for two years, the BIOSENSE™ device validated my diet choices so I could more easily stay in ketosis.
Zack D.

Mary D.
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BIOSENSE™ Replacement Mouthpiece
USD $9.00
- Three extra mouthpieces