Feature：

Brand new digital breathalyzer， perfect for safe driving!
LCD display， easy reading
Blue backlight
Smart MCU control
Audio warning beyond pre-set limit
Sensor fault self checking

Item Description：

5 mouthpieces included
BAC test range: 0.00-0.20%
Power supply: 3 x AAA batteries (NOT included)
Automatically power off
Tips: When you start to use the product， the first 100 milliseconds countdown is device warm-up time. Please blow about 5 to 10 seconds after all countdown is finished， and then view the reading.

Package Content：

1 X Breathalyzer
5 X Mouthpiece
1 X User manual in English