BACtrack Backtrack Manuale d'uso - Pagina 8
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Step 2. On your mobile
device, press the "Take
a Reading." button. A
countdown clock appears
while the sensor in the
breathalyzer warms up.
12.
Step 3. When the screen
on your mobile device reads,
"Blow now," take a deep
breath, and blow into your
BACtrack Mobile Breathalyzer
continuously until all the bars
are illuminated. It should take
about five seconds, and you
might hear a click towards the
end - that's the air pump
pulling air across the sensor.
13.