Desciption:1. Advanced flat surfaced alcohol sensor， high sensitivity.2. Rapid detect results， quick response and resume.3. High accuracy， detection range: 0.000-0.199% BAC / 0.00-1.99‰ BAC / 0.00-0.99 mg/L.4. Easy to use， Light weight. With a bag for it， easy to carry.5. Low power consumption， auto power-off. 6. Blue-colored backlight LCD display.Specifications:* Warm-up time: Within 10 seconds* Respond time: Within 5 seconds* Operating temperature range: 5~40* Power input: 3 x1.5V "AAA" alkaline battery(battery not included)Package Includes:1 x Digital Breath Alcohol Tester(battery not included)1 x Cloth bag5 x Mouth breath