【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. You can find the UK manual through Amazon online: - Product guides and documents User Manual (PDF)
【ONE key operation and Simple operation】Press start key once and test. 4 measurement units (%BAC , ‰BAC, mg/l and mg/100ml) can be preset as default unit while install new battery and please refer to user manual
【Compact Design and low power consumption】Compact and just 98mmx40mmx18mm. Can last 300 test with 2 ALKALINE batteries