Do not smoke and eat for 20 minutes prior testing.
Do not use chemicals such as benzene, thinner or petrol to clean the tester .
Do not blow liquid into the breath pipe.
Do not use any excitant substances near the tester, such as pains, insecticides, alcohols.
The unit is designed to be used as a tool to promote reasonable driving. it should not be used in anticipation of it the use or operation of vehicles, machines, or equipment.
The unit does not make any references to blood alcohol contents or other such measures of intoxication proclaimed by government, medical or other agencies or bodies. the result of this alcohol gives BAC reference only, manufacturer does not have legal responsibility.