Tester: 3V (2 x AAA alkaline battery, not included)
Clock: 1.5V (1 x AG13 Cell Button, included
1 After drinking , it is recommended to wait 20 minutes before testing, because alcohol takes about 20 minutes into the blood from the digestive organs , and residual alcohol in the mouth takes time to dissipate .
2 To get a more accurate result , the distance should be at least three minutes between each test .
3 Do not use benzene , gasoline and thinners cleaning product ingredients tester .
4 Do not allow any liquid penetrated into the sensor.
5 to remind you , to you and the safety of others , do not drink and drive.
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