Specification: Sensor: Semiconductor alcohol sensor Warm-up time: ≤ 10 seconds Respond time: ≤ 5 seconds Operating temperature range: 5 ~ 40º C Detection range: 0.00 ~ 0.19% BAC / 0.0 ~ 1.9 g/l Power input: Tester: 3V (2 x AAA alkaline battery, not included) Unit size: 95 x 37 x 15 mm Print size: 12 x 12 mm Testing Result: Safety ≤0.01% BAC / 0.1 g/l Caution 0.02 ~ 0.04% BAC / 0.2 ~ 0.4 g/l Danger ≥0.05% BAC / 0.5 g/l