Outstanding levels of precision and durability; a next generation ketone analyser.

With unrivalled breath sensor technology cumulating from 10 years of research, the KETOSCAN Mini offers ultra precise ketone measurement. Its highly accurate electrochemical cartridge detects ketones (acetone gas) in your breath and gives you a reading in PPM (parts per million).

the world’s first cartridge-based portable ketone analyser

Blow into the KETOSCAN Mini for 3 seconds, just like you would a breathalyser. A convenient way to test your ketone level anywhere, anytime.

Results are displayed clearly on the large LED display. Sync your device with the Ketoscan app to track, record and annotate your keto journey.

The unique electrochemical cartridge is replaceable after 300 tests, to give you continued accuracy at less than 13p per test.

ketoscan app

KETOSCAN Mini is easy to use on its own, but even better paired with the Ketoscan app. It’ll guide you through set-up and display your breath test result instantly. See all your ketone (acetone) readings in PPM, monitor your changing ketosis level and fat burn rate – all in one place. You can also upload photos and notes to track what you’re eating – and see how it affects your level of ketosis.


How accurate is the KETOSCAN Mini?

The relationship between blood acetone concentration and acetone concentration in the breath is 1:1 – therefore the KETOSCAN Mini can precisely measure blood acetone concentration.

Ketoscan’s manufacturer, Sentech, uses respiration gas analysis technology derived from 20 years’ experience as a global leader in breathalyser technology, to guarantee the precision of KETOSCAN. Ketoscan is a global product with USA FDA certification for safe use and European CE approval.

What is self-diagnosis?

KETOSCAN uses a self-diagnosis function, which is a patented technology. If the device is not used for a while and left alone, even for a short period of time, gas around the house gets inside the equipment, changing the zero-point (base line) of the sensor which may influence the measurement. KETOSCAN has patented technology that can self-check the equipment status during the measurement preparation stage. If it decides that zero-point is incorrect, it does not show the measurement after blowing by the user but uses respiration gas of the user for zero-point adjustment and requires the measurement again. Self-diagnosis operates automatically according to the situation, so even if it occurs frequently, it is not that the function is degraded but it is for more precise measurement, so you don’t have to worry.

What is the replaceable electrochemical cartridge?

To measure ketones in your breath, the KETOSCAN Mini needs to detect acetone in extremely low concentrations. To do this, KETOSCAN Mini uses a highly accurate electrochemical cartridge to give you a reading in PPM (parts per million). The sensor inside the replaceable cartridge is very sensitive and when used frequently, it is inevitably contaminated by particles in the breath.

After 300 tests, KETOSCAN will display a message recommending a cartridge change to guarantee continued accuracy. In the UK, you can book a cartridge change service with AlcoDigital, who will replace the electrochemical cartridge, recalibrate and check your device, before returning it to you.

Please note that after 320 tests, your KETOSCAN Mini will not allow you to conduct any further use without a cartridge change.

technical specification

Sensor type

High resolution acetone gas sensor

Indication of result

PPM (parts per million)

Display resolution 

0.1PPM until 10PPM

1PPM above 10PPM

Display range

0.0 – 99 PPM

Calibration (service) interval

After 320 tests (300 tests + extra 20 tests)

Accuracy level

Less than 5PPM: +/-0.5PPM

Above 5PPM: +/- 10%

Warming up time

45 seconds

Analysing time

Within 5 seconds


Rechargeable lithium-polymer battery

Tests on a full charge

Minimum 50 tests


Built in mouthpiece or disposable mouthpiece


54mm x 110mm x 18.5mm



Storage / working temperature

5 – 50C / 10 – 40 C


FDA Class I