ht-611 digital alcohol tester tool breath testing breathalyzer testers breathalyser alcohols breaths test tools

it is useful that it can accurately measure the body alcohol content just by blowing to the instrument. without contact, it can avoid bacteria from entering your mouth, safe to use. advanced alcohol sensor with high sensitivity and quick response. it can give a warning when the value exceed your preset value. lcd screen with backlight, convenient for night use. compact design and portable size, convenient to carry.