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Breath Ketone Monitor & Mobile App


  • Bluetooth enabled BIOSENSE® Device with unlimited testing
  • Micro USB Charging Cable
  • Free app with personalized ketone data and goal tracking
  • Features
  • Technology
  • Specification
Advanced Sensors

Patent-pending Deep Lung Sampling technology measures breath acetone levels from only the latter part of the exhalation to gain the most accurate breath acetone detection.

Elegant Design

Its sleek design fits in the palm of your hand.

Long-Term Trends

Your daily ketone trends let you easily see the impact of different foods and exercise routines on your ketone levels. You can see how long and deep you were in ketosis on any given day.

Daily Ketone Score

The Ketone Score is a summary of the depth and duration of your nutritional ketosis each day. The deeper your ketosis and the longer you maintain it, the higher your ketone score.

Simple, Personal Trends

Discover how different foods and exercises affect your metabolism by testing right before and then again 1-3 hours after eating or exercising.

Battery Life

Battery life depends on your testing frequency. With an average 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.


Hear From Industry Thought Leaders

Breath ketones provide accurate insight into our metabolic state. Hear what biohackers, patients, and consumers have to say about their experience with Biosense.

More Products

BIOSENSE® Replacement


*Two extra mouthpieces

While your device comes equipped with a mouthpiece, you can order 2 additional ones here in case you want to replace them if they get lost, or you would like to use new ones for hygienic reasons.

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The Only Clinically Backed

Breath Ketone Monitor

Clinical grade ketone monitoring to help
you achieve precision fasting results.

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