Specifications : 1) Breath alcohol tester 2) 3 test steps with LED indication 3) Safety: under 0.05% BAC (0.25mg/L BRAC) 4) Caution: 0.05% ~ 0.08% BAC (0.25 ~ 0.4mg/L BRAC) 5) Danger: over 0.08% BRAC (0.4mg/L BRAC) 6) Audible alert 7) Quick response and resume 8) Clock with 12 / 24 formats 9) 5 alarms 10) Countdown and count-up timer keeps the deadline of parking 11) Clock uses 1 x AG13 battery (included), alcohol tester uses 2 x AAA alkaline batteries (not included) 12) Unit dimensions: 91 x 31 x 17.5mm