1、Adopts advanced sensor technology, can give you a accurate and reliable result in few seconds 2、High accuracy, superior chip and efficient processor improve the speed and accuracy of alcohol content measuring 3、Quick response and resume, simple to operate 4、Compact size and lightweight, easy to put in purse or pocket 5、Ergonomic design for comfortable grip. Exquisite mouthpiece ensures the accuracy of the results Features: 1. Adopts advanced sensor technology, can give you a accurate and reliable result in few seconds. 2. High accuracy, superior chip and efficient processor improve the speed and accuracy of alcohol content measuring. 3. Quick response and resume, simple to operate. 4. Compact size and lightweight, easy to put in purse or pocket. 5. Ergonomic design for comfortable grip. Exquisite mouthpiece ensures the accuracy of the results. 6. LCD backlight display for easy reading, more intuitive and practical. Specification: Item Type: Alcohol Tester Material: ABS Color: Black Battery Type: 3 * AAA Batteries( Not Included ) Response Time: 5s Display: LCD Display Measure Range: 0.000%-0.190% BAC(0.000-0.95mg/L) Alarming Level: 0.05%BAC, 0.5g/L Accuracy: ±0.01%BCA or 0.05mg/L Working Current: ≤180mA Environment Temperature: -10℃-50℃ Item Size: 12.2 * 5.2 * 1.9cm / 4.8 * 2.0 * 0.7inch Package Weight: Approx. 130g Package List: 1 * Alcohol Tester 5 * Mouthpieces 1 * User Manual 1 * Cloth Bag