Features: 1) Promptly and conveniently designed for measuring BAC 2) A simple method to analysis blood alcohol content at anytime and anywhere Alcohol tester with short ready time/quick response and resume: 1) A type for European or Japanese market: With colored LED indication A) Under 0. 02% BAC (0. 10mg / L BRAC): Green B) Over 0. 02% BAC (0. 10mg / L BRAC): Yellow C) Over 0. 05% BAC (0. 25mg / L BRAC): Yellow, red 2) B type for the US market: 3-step with LED colored indication A) Under 0. 05% BAC (0. 10mg / L BRAC): Green B) Over 0. 05% BAC (0. 25mg / L BRAC): Yellow C) Over 0. 08% BAC (0. 40mg / L BRAC): Yellow, red Specifications: 1) Countdown and count-up timer keep the deadline of your parking 2) Super-bright white LED flashlight with keychain 3) Power sources: 2 x AAA batteries (excluded) 4) Unit size (H x W x T): 70 x 35 x 21mm 5) Color: Black or grey (Pantone color 432C) 6) Material: ABS plastic