Feature: 1. LCD color screen, clear reading of measurement data. 2. Three color indicator light, display screen combined with light and buzzers reminders, easy to understand whether or not drunk driving. 3. Can be tested by multiple people continuously, and can save 9 sets of test records. 4. Support power-off memory function. 5. Equipped with intelligent chips, highly sensitive sensors, accurate and sensitive. 6. 6 units adjustable: mg/100ml, ％BAC, mg/LBrAC, ‰BAC, g/L, ‰PROM. 7. Large capacity battery, with USB rechargeable design, you don\u0027t need to worry its battery. Specification: This is a device for estimating BloodAlcoholContent (BAC) from a breath sample. It can be used in a wide variety of settings including clinical test applications and for personaluse. Its uses semiconductor alcohol sensing technology to quickly take a breath sample and provides a BloodAlcohol Content (BAC) estimate. Features: LCD color screen, clear reading of measurement data. Three color indicator light, display screen combined with light and buzzers reminders, easy to understand whether or not drunk driving. Can be tested by multiple people continuously, and can save 9 sets of test records. Support power-off memory function. Equipped with intelligent chips, highly sensitive sensors, accurate and sensitive. 6 units adjustable: mg/100ml, ％BAC, mg/LBrAC, ‰BAC, g/L, ‰PROM. Large capacity battery, with USB rechargeable design, you don't need to worry its battery. Specifications: Color: black Material: plastics Battery: 3.7V, 320mAh Warm-up time: 10s Sensing time: 5s Accurancy: ±10％ Screen size: 2.5in Item size: 130 * 66 * 23mm / 5.1 * 2.6 * 0.9in Item weight: 120g / 4.2ounce Package size: 187 * 85 * 29mm / 7.4 * 3.3 * 1.1in Package weight: 210g / 7.4ounce Packing List: 1 * Breathalyzer 5 * BlowingNozzles 1 * Storage Bag 1 * USB Cable 1 * User Manual Package List: 1 * Breathalyzer 5 * BlowingNozzles 1 * Storage Bag 1 * USB Cable 1 * User Manual