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Biosense Sensor Recalibration Program

To ensure medical grade accuracy, sensor testing is suggested every 6 months.  Over time, a sensor may become saturated with environmental contaminants that can cause your sensor to “drift”.  You can think about it like resetting a clock: while you set the time accurately when you first receive the clock, as time passes, it can gradually drift by a few minutes, and eventually needs to be reset.

Signs that it may be time to recalibrate your Biosense sensor:

  • 6 months since your last calibration
  • Consistently measuring 0 ACEs

Service Process:
You will receive an email from us every 6 months to notify you that it is time to test your Biosense. You can also reach out to to request Biosense sensor testing proactively. Testing will be completed by trained technicians to determine whether your sensor needs to be recalibrated.  You will follow the below steps.

We provide you with a shipping label for you to send Biosense back to us.

We test your device and recalibrate the sensor if required to ensure medical grade accuracy.

We send Biosense back to you.

This process can take from 6-10 days.

Sensor recalibrations are covered within your 1-year warrantee. Any sensor recalibrations that fall outside of the 1-year warrantee time frame will cost $74.99.

Why Biosense measures from your breath ketones and not your blood ketones.

Biosense® lets you measure your ketones without having to prick your fingers. Using only your breath, you can accurately track how your ketone levels shift without the pain, hassle, and expense of blood ketone tests.

The Biosense® device uses patented 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. Deep lung sampling 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 patented technology.

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