Equip with the UK platinum fuel cell sensor, Mr. Black 2000 has a 0.001 third decimal place accuracy. Highly trusted by hospitals, clinics, and even law enforcement. The breath alcohol tester also provides you a reliable and stable result within 1.75% deviations every time when you test, good for Personal, Professional, third part organization, drivers, Party, home use. -Simply press one button and blowing for 5 seconds, then waiting for about 8 seconds, the colored will show up the result accurate to the third decimal place, making it the top choice of safety-conscious individuals as a portable home breathalyzer. Five of mouthpieces can be cleaned and recycled, making recycling more environmentally friendly. & The LCD screen can show up the result clearly no matter in dark or under the sun, the tester will make a "di" sound when the test is completed. And the breath alcohol analyzer can record 10 records of the result so that you can know your history performance. & Power by a rechargeable 1000 mAh Li-ion battery, Mr Black 03 can be used for at least 200 times, and the charging cable include let you charge the portable breath alcohol tester any time in the car or at home. Come with a carrying case to protect your breath alcohol analyzer,and a weight of 135 gram and 45.5in x 2.6in x 1.1in dimension, make it easy to carry. & We are confident that our Mr. Black 2000 Breath Alcohol Tester has a good quality and accurate test result,. So feel free to contact us if you have any question Quick Test Hight Accurate Breathalyzer equipt with a professional fuel cell sensor can test your BAC in 10 seconds. Main Features - Quick Response, No Warm Up - Test Your BAC with in 10 Seconds - Fuel Cell Sensor for Police-Grade Accuracy - 1000 mAh Rechargeable Lithium Ion Battery - LCD Colored Screen for Clear Read Out Result - Two Detection Mode for Your Chooce - Portable Design for Daily Carrying - Auto Off in 3 minutes to save energy - Simplem, One-Button Operation - ZBK Quick Test Hight Accurate Breathalyzer equipt with a professional platinum fuel cell sensor can detect trace amounts of alcohol, reliably handles high BAC levels and is accurate to the third decimal place. Thanks to the platinum fuel sensor and more accurate algorithms, Mr. Black 2000 can be measured without preheating, and can accurately measure your BAC value in only 10 seconds. Power by a rechargeable 1000 mAh Li-ion battery, Mr. Black 2000 can be used for at least 200 times, and the charging cable include let you charge the portable breath alcohol tester any time in the car or at home The accurate mode uses the mouthpieces for precise results, fast and accurate. Quick test mode without mouthpieces for friends qualitative analysis, convenient and health.