Description: This is a digital breath alcohol analyser tester. Digital alcohol test with audible alert. Auto power off, quick response and resume. The digital alcohol breath tester has a key chain, very portable to carry out. Pormptly and conveniently design for measuring BAC. A simple method to analysis Blood Alcohol Concentration at anytime and anywhere. A breathalyzer or breathalyser (a portmanteau of breath and analyzer/analyser) is a device for estimating blood alcohol content (BAC) from a breath sample. The breathalyzer is one of the most affordable breathalyzers available. It can be used in a wide variety of settings including clinical test applications and for personal use. Its uses advanced semiconductor alcohol sensing technology to quickly take a breath sample and provide a blood alcohol content (BAC) estimate. The lcd graphic display will indicate how inebriated you are, whether it be dangerous (over 0.05% bac), unsafe (approx. 0.02% bac) or safe (under 0.02% bac). Displays "caution" when result is within 0.02% - 0.05%, displays "danger" when result equals to or higher than 0.05%. Product parameter: Color: Black&Gray Item size: 110*70*25mm Battery: 2"AAA" alkaline batteries (NOT INCLUDE) Sensor: advanced semiconductor oxide alcohol sensor Range: 0.00-0.19%BAC & 0.0-1.9g/l (or 0.00-0.95mg/l BRAC) Accuracy: 0.01% BAC(0.1g/l) Packing list: 1 x Digital Alcohol Breathalizer Tester 4 x Breath inhaler Case This product is available with and without backlight, please purchase according to your needs.