Feature: 1. Non Contact Blowing: The alcohol breathalyzer adopts non contact blowing, with fast inspection speed, measuring healthier 2. Beep Warning: The alcohol detector has a beep alarm, will sound immediately when the detection data exceeds the safe range, 2 prompt methods indicate different test result 3. 3 Color Indicator Light: The indicator light of the alcohol detector shows the test results in 3 colors according to the different alcohol solubility test results, the alcohol results are clear at a glance 4. Accurate Value: The alcohol tester is displayed on the LCD high definition screen with accurate values, there are two units, mg/L and %BAC, which are clear, simple and easy to read 5. Scientific Filtration: The alcohol detector can exclude other gases and retain alcohol, provides more accurate detection 6. Built in Rechargeable Battery: The alcohol detector has a built in rechargeable high capacity lithium polymer battery, which can be used for about 300 times once charged, and the universal USB charging port is more convenient 7. Small and Portable: The alcohol detector is small and portable, does not take up space, the whole machine is light in weight, and can be easily carried in a backpack Specification: Item Type: Non Contact Breathalyzer Material: ABS Measurement Range: 0.000-0.199%BAC, 0-0.999mg/L Charging Voltage: DC 5V Warm up Time: 10s Exhalation Time: Within 10s Response Time: Within 5s Power off Time: 40s after measurement Operating Temperature Range: 0℃ to 45℃ Storage Temperature Range: -20℃ to 50℃ Battery Type: 1 x 502030 polymer lithium battery 200mAH (built in). Package List: 1 x Non Contact Breathalyzer1 x Data Cable1 x Manual