Product features:1. Sensor: semiconductor alcohol sensor2. Warm-up time: within 10 seconds3. Response time: within 5 seconds4. Operating temperature range: 5~40 5. Detection range: 0.000% - 0.199% BAC/0.000 - 1.990 BAC/0.000 - 0.995 mg/l6. Digital display result (% BAC/ BAC/mg/l)7. Rapid response and recovery8. Automatic power off9. Orange backlight10. Low voltage indicator11. Power input: 3 v (2 x AAA alkaline batteries, not included)12. Unit size: 116 x 45 x 15 mminstructions1. Press the switch key once, and the LCD display of the tester will light up and emit a "beep" sound.2. The status warm up number will jump from 10 to 0, and then the status blow 10 will jump to 0, and the warm-up procedure will be completed.3. At the beginning of the countdown of 6 seconds, put your mouth close to the expiratory test sensor and exhale into the sensor for 3-5 seconds4. The display can read the test results.5. When the test result reaches the following range, the words "Caution" and "Warning" will be displayed0.02% BAC(or 0.2g/l)to 0.05% BAC(or 0.5g/l)0.05% BAC(or 0.5g/l)to 0.08% BAC(or 0.8g/l)6. When the test results reach the following range, the words "Danger" and "Danger" will be displayed.over & EQUAL 0.05% BAC (or 0.5g/l)over & EQUAL 0.08% BAC (or 0.8g/l)7. The mandatory national standard of the Regulation on the Alcohol Content in the Blood of Motor Vehicle Drivers while Driving: the alcohol content in the blood is greater than or equal toDriving a motor vehicle at 0.2mg/ml is drunk driving; Driving a motor vehicle when it is greater than or equal to 0.8mg/ml is drunk driving.PostscriptThe standard of drunk driving and drunk driving: the driver's blood alcohol content is greater than or equal to 20mg/100ml and less than 80mg/100ml, which is drunk driving. The driver's blood alcohol content is greater than or equal to 80mg/100ml, which is drunk driving.In general, if you have just finished drinking alcohol, the alcohol test will be carried out immediately, and the displayed value may be higher, but if you measure it after 20~30 minutes, the value may decrease, but this value is more accurate, because at this time the alcohol has been digested and absorbed into the blood. Although the critical value for the traffic police to punish drunk driving is 20mg (or 0.02g), this does not mean that driving is safe if it is less than 20mg (or 0.02g). No matter how much alcohol you drink or how little you drink, you'd better not drive as long as you drink. This is not only responsible for others, but also for yourself.Theoretically, after a person drinks 350ml (about equivalent to a small bottle) of beer or half a dozen Baijiu (20ml), the blood alcohol concentration can reach 20mg/100ml; When the alcohol consumption rises to 1400ml (equivalent to three 500ml bottles) of beer or half of Baijiu (80ml), the blood alcohol concentration can reach 80mg/100ml. This data is somewhat different from the actual test results, because the human body has different ability to absorb and decompose alcohol. One person may not feel at all after drinking the same glass of wine, while another person may be drunk. In addition, the results of the breath tester are not necessarily completely accurate, and the detection method is still through blood sampling test. This is also the reason why the traffic police must conduct blood sampling test when determining that the driver is drunk and driving.According to the report of the World Health Organization, when the alcohol content in the driver's blood reaches 80mg/100ml, which is the critical value of drunk driving, the chance of traffic accidents is 2.5 times higher than that without alcohol in the blood. The alcohol content in the blood reaches 100mg/100ml, and the chance of traffic accidents is 4.7 times higher than that without alcohol in the blood. Even under the condition of a small amount of alcohol, the risk of traffic accidents can reach about 2 times of that under the condition of no alcohol.statement1. No matter whether the product is used or not, the manufacturer and seller will not bear any responsibility for illegal acts. For example: drunk driving, work at height.2. Everyone has different reactions to alcohol, so the test results are only for reference and cannot be used as the criteria for determining the resultsreminderAfter drinking, it is recommended to wait for 20 minutes before testing, because it takes about 20 minutes for alcohol to enter the blood from the digestive organs,The residual alcohol in the mouth also needs time to dissipate.To obtain more accurate results, the distance between each test should be at least three minutes.Do not clean the tester with products containing be