Involvement:General (knows how to use it) - Ownership:more than 1 month
The tester is very very simple in use. There is just one button you have to push on and it will countdown till the display announces BLOW.
After approx 5 sec normal blowing it wil beep and you can read out your promilage of alcohol in your blood.
A green le...
The countdown before you can start blowing takes approx 20 sec.
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