digital alcoholism test mini alcohol tester lcd breathalyzer usb breath detector non-contact blowing type alcohols testing tool

[usb charging]can be charged by mobile power / lap/ car, convenient and fast. [sound & light prompt]di~di, there will be clear beep prompt tone, and 3 colors light prompt, convenient for you to operate and result prompt. [blowing type]air blowing, non-contact, hygienic and high precision. - led display,make it much easier for the night display and give you professional accuracy for safe driving. - 3 detection indicators,green: safety, orange: caution, red: danger. - high-precision,high-sensing chip, more accurate measurement.