Alcohol test Press and keep holding the "POWER" button about 10 seconds, the green LED will be lighted on. Indicating the tester has entered into testing status.After 10 seconds later, exhale pneuma into exhale pipe and look into the result as follows: IF Green LED keeps lighting: Safety-under 0.02% BAC(Blood Alcohol Concentration) or 0.1mg/L BRAC IF Yellow LED keeps lighting: Caution-under 0.02%-0.05% BAC(Blood Alcohol Concentration) or 0.1mg/L-0.25mg/L BRAC IF Red LED keeps lighting: Danger-over 0.05% BAC(Blood Alcohol Concentration) or 0.25mg/L BRAC Notice: Please make sure to keep holding the "POWER" button during test
