car driving safety dual lcd digital exhalation alcohol tester ad06 with clock backlight breath analyzer driving parking detector widget a01

specifications: detection range: 0.00- 0.95 mg/l power input: use 2xaaa alkaline batteries (not included), clock use 1x ag 13 button cell color:white size: approx 96 x 35 x 27mm(3.8x 1.4x 1.1 inch) net weight:38g