Use and Care Manual

Device Settings
Pressing the button takes you to the SETTINGS
menu. Once inside press to scroll through the
following options and press to select.
History: view the previous 10 measurements or
delete measurements stored on the device. BIOSENSE
can store a maximum of 100 measurements.
Set Time: manually set the device clock. If you pair to
the app, the app will automatically set the device clock
and manual time setting is not necessary.
Info: view device information like serial number,
rmware version, sensor status and microphone status.
If the sensor status shows CLEAN, run a clean cycle
from the SETTINGS menu. If the mic status shows FAIL,
contact customer support.
Clean: run an extensive sensor cleaning process. A red
dot next to Clean in the device SETTINGS indicates that
a sensor clean is recommended.
Home: navigate back to the device Home screen.
Tips For Success
For best results, wait 60 minutes after:
• Eating
• Smoking/vaping
• Drinking sodas or avored waters
• Consuming items with avorings such as:
Do not test after consuming alcohol. For best results
wait until the next morning.
Cleaning Your Device
Clean your BIOSENSE device once a week. Remove the
mouthpiece from the device before cleaning by gently
squeezing its base and pulling it away from the device.
Use a cloth and water to clean your mouthpiece. Do
not use cleaning wipes that contain alcohol.
• Toothpaste
• Mouthwash
• Cough drops
• Breath mints Chewing gum
• Lip balm
• Articial sweeteners
Factory Calibration and Quality Control
Each BIOSENSE device undergoes an individual
factory calibration process to ensure precise
measurementperformance.
Accuracy and Precision Testing
The BIOSENSE device represents breath acetone in
scaled units called ACEs. 
Precision testing was performed with NIST-certied gas
standards and results were analyzed for accuracy and
repeatability (10 devices, 225 measurements). The graph
below shows how BIOSENSE accurately measures lab gas
standards with very high repeatability.
Errors
An overly gentle blow may not be
detected. Make sure you are blowing
with moderate strength. Continue
blowing until you feel two short
vibrations, which signals that a breath
sample has been correctly obtained.
Blowing too gently
Exposure to solvents
BIOSENSE contains a highly sensitive
chemical sensor. Solvents like hand
sanitizer, nail polish remover, and
other aromatics may react with the
sensor and interfere with sensor
preparation and clearing. If the sensor
is aected by environmental solvent
exposure or is otherwise unable to
adequately prepare, a red indicator will
appear on the screen and direct you to
run a sensor Clean (see Device Settings).
Charging Your Device
Charge your BIOSENSE device using the provided Micro
USB charging cable and an approved LPS power supply
(maximum rating 5V/1A). Your device needs 2 hours
for a full charge. When your device is charging, the LED
underneath the mouthpiece will glow red.
Sleep, Power O & Hard Reset
After completing the measurement, the device will
go to sleep. To manually put the device to sleep, hold
down the button for 2-3 seconds and release. To
fully power o the device or to initiate a hard reset,
hold the button down for about 12 seconds and
release. The device battery will slowly discharge while
sleeping. If you know you will not measure for several
days, plug in your device or power o completely.
Smart Clean
If your device determines that extra sensor warmup or
clearing is necessary, it will automatically activate the
Smart Clean process. Periodic Smart Clean activations are
a normal part of regular device use and do not indicate
device malfunction.