Product Introduction: Features: 1 Sensor: Semiconductor alcohol sensor2 Warm-up time: Within 10 seconds3 Respond time: Within 5 seconds4 Operating temperature range: 5 ~ 40 c5 Detection range: 0.00% - 0.19% BAC / 0.0 - 1.9 g/l6 Digital display results (% BAC & g/l)7 Quick response and resume8 Auto power-off9 Temperature indicator10 Low voltage indicator 11 Real time & Alarm clock & Countdown timer12 Power input: Tester: 3V (2 x AAA alkaline battery, not included)Clock: 1.5V (1 x AG13 Cell Button, included)13 Unit size: 100 x 37 x 17 mmPrint size: 20 x 10 mm Model NO.: AT129 Company: SP Industrial Ltd.