i. Indication of b.a.c. High: > 0.50 % or 0.05 % bac or 0.25mgl brac low: 0.20~0.50 % or 0.02~0.05 % bac or 0.10~0.25mgl brac zero: 0.20 % or 0.02 % bac or 0.1mgl brac ii. Sensor - semiconductor type alcohol sensor iii. Accuracy - (+ -) 0.01%bac at 0.05%bac iv. Mouthpiece - no need to use v. Power - rechargeable battery pack vi. Weights - 180g (including batteries) vii. Dimension (mm) - 150 (height) x 75 (width) x 24 (thickness) viii. Audible warnings - 3 steps beep warning of alcohol detection with led display ix. Available color - silver x. Certificate -ce, kriss, rtsa