Alcohol Breath Tester

Features:
1) Built-in advanced ethanol semiconductor sensor is very reliable and stable
    with short ready time, quick response & resuming 
2) Simple to use: all test step control and display results on a bicolor LED
    a) BAC under 0.05% (or 0.25mg/L BRAC), LED keeps lighting in green
    b) BAC equal or over 0.05% (or 0.25mg/L BRAC), LED keeps lighting in red  
3) Super slim size comes with a ribbon convenient for bringing with your
    vehicle keys
4) Powered by 2 x AAA batteries
5) Unit size: 77.5(L) x 24(W) x 15(T)mm