【Alert and Default unit】The alarm beeps and HI indicator flash if the result >0.50 ‰BAC. Although UK limit is 0.8 ‰BAC and Scotland is about 0.25mg/l (0.22mg/l if considering 2.3 conversion), we just alert you in advance. Also, the Alert level and default unit can be set and please refer to user manual. Detect Range: 0.08~2.00 ‰BAC; Below 0.08‰BAC (or 0.04mg/l), it will display 0 preventing false alarms due to oral and environment smell
【Important】 If tested immediately after drinking, the results range from high to low and stabilize in about 15 min. So, it takes a long time to get down to 0 . It takes about 10 min. ~ 10 hours, depending on the amount of alcohol you drink, your physical condition and your liver's ability to detoxify is an important factor in the concentration test.
【Caution and manual】Semiconductor sensor technology and detects alcohol in seconds. It should wait 15 minutes. before checking, otherwise the reading will swing from very high to low (then gradually decrease). This is due to the alcohol residue in the mouth that affects the test values.
【Blood alcohol processing time】 When alcohol enters the blood circulation through the digestive tract (mouth, stomach and intestine), it is distributed to different parts of the body, including the lungs. It takes 15 to 31 minutes for this period to stabilize. It will slowly sink to zero until all the alcohol is absorbed and completely disappeared.
【Compact design and memory】 It can also store the last 10 test results for comparison. 3 AAA alkaline batteries Last about 350 tests