Breathalyzer Rechargeable Battery, 10 Memories & can Last 250 Tests After Fully Charged. 4 Default Unit Setting (White 168X)

【Important】Alcohol concentration in your body will change over time. Don’t be fooled by what describes on the internet and not just about calculating your weight, age and gender. If you test immediately after drinking, the results will fluctuate from high to low, and return to a stable level after about 15 minutes. If you drink a lot, it will take a long time to drop to zero. This is why you need to use a tester instead of estimating or passing your imagination.
【Semiconductor sensor & Caution】Advanced semiconductor sensing technology can detect alcohol content in seconds. Please wait 15 min. before checking, otherwise the reading will fluctuate from very high to low (then gradually decrease). This is due to the residual alcohol inside the mouth which enhance the result
【Time from stable to zero】 It takes few minutes to few hours, depending on the amount of alcohol you drink, your physical condition and the detoxification function of your liver. In fact, detoxification capacity is an important factor. in the concentration test.
【Alert and Default unit】The alarm beeps and HI indicator change to red if the result >0.50 ‰BAC. Also, you can set the Alert level and default unit and please refer to user manual. Detect Range: 0.008~0.200 %BAC; Below 0.008%BAC (or 0.04mg/l), it will display 0 preventing false alarms due to oral and environment smell
【Blacklight control】Can select 9 different level brightness and with detachable 350mAh lithium ion battery, which can be charged by any charger via USB port. The charger rating should be 5V-2A or higher. 200 tests can be performed after fully charged.