How to use the alcohol tester
Warm up
1. Press the power button once, the alcohol tester LCD
will turn on with one beep sound.
2. The ''warm up'' symbol is displayed, and the 10 to 0
countdown is started that indicate the tester is in
warm-up mode.
Note
*If first warm-up is defeated, the tester will be reset
automatically and warm up again
*It always has a large number of gas & impurity adsorbed
on the surface of alcohol sensor,
When first time taking out the tester from the packaging,
or after long time no using for the tester, it need more
time for cleaning and warm up the sensor, you should
repress the power button and retry several times if
possible.
Test
1. The ''Blow'' symbol is displayed when warm-up is
succeed, and the 10 to 0 countdown is started that
indicate the tester is in testing mode.