1. Key parameters such as sampling analysis, test accuracy and display range designed according to the EN 16280 standard, which drafted and officially adopted by the European Union in the field of breath alcohol testing devices used by the general public in the year of 2012.
2. Units setting (2 software version for option):

1) Version 1:mg/L, ‰, %, unites can be switched freely by user.
2) Version 2:factory fix set the unit according to customer's requirement before shipment, end user cannot reset the unit.

3. Low voltage warning.

4. Sound warnings that exceed preset criteria.

5. Single button operation design, easy use.