Having a drink? You'll need this Mini Digital LCD Display Breathalyser Simply blow into the hole at the top to get a reading before you drive LCD display shows your results in a matter of seconds Range: 0.00-0.19%25 BAC and 0.0-1.9g/l Measures 12.7 x 7.7 x 2cm Requires 2x AAA batteries (not included) Save 77% and drive safely with this Mini Digital LCD Display Breathalyser