BIOSENSE® Breath Ketone Monitoring System

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 Sensors
The 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 Design

BIOSENSE® 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 Trends

The 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 Score

The 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 Trends
To 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 Life
Battery 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. 
The 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.
The required deep lung sampling process provides accurate and reproducible measurements by correcting for natural variations in exhalation time and lung capacity across individuals.

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.

Emilia Clarke
Measuring ketone production can be a pain. I’ve recently been testing a new device called BIOSENSE® that will change this. It’s a scientifically validated, highly accurate breath ketone monitor that makes it easy to test your ketones throughout the day. I’m now recommending it to all of my patients that are fasting or doing ketogenic diets, and I’m using it myself. Check it out!
Chris Kresser
Emilia Clarke

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.
Emilia Clarke
The BIOSENSE® device made tracking my ketones easy and accurate compared to taking multiple blood samples during the day. It was so convenient I could use it at my desk at work. As an endurance athlete training for an Ironman, the BIOSENSE® device helped me maximize my training by staying in a fat burning state throughout the day. It helped me easily track my ketones and help keep me focused on my diet so I could excel on my daily workouts.
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.
I love this product! BIOSENSE® is easily the most affordable, accurate and pain-free keto tester that I’ve used. I am a 50 year old wife, mother of four and a travel and sports enthusiast. I take an active role in my well-being and BIOSENSE® helps me fine-tune my Keto diet. Since starting Keto, I have lost 30lbs and kept it off for several years. I am free from yo-yo dieting. My key to success on keto is tracking my ketone levels. With BIOSENSE™, I can track my levels without overpaying for expensive blood strips and meters. Plus, no more painful finger pricks! BIOSENSE® is an amazing tool that I use daily to meet my keto goals. I highly recommend BIOSENSE®.
Mary D.

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BIOSENSE® Replacement Mouthpiece

USD $9.00

  • Three extra mouthpieces
While your device comes with 3 mouthpieces, you can order 3 additional ones here in case you want to replace them if they get lost or your would like to use new ones for hygienic reasons. We recommend replacing your mouthpiece once every 3 months.