Features: Upgraded alcohol tester has additional memory function to store up to 50 groups of test results. Non-contact breathalyzer needs no disposable mouthpiece. Designed with a purification room that purifies distractors leaving only alcohol, the sensor will show you the alcohol concentration in highprecision. Three color blocks and digit display show you the alcohol test result intuitively. USB rechargeable, the high capacity lithiumbattery lasts long on a full charge. Portable and easy to store, the breathalyzer is great for home use, outdoor camping, carnivals, and more occasions, place it in your car and test your breath when you need it. Specifications: Material:ABS Size: Approx.30.6x13.5x58.74mm/1.2x0.53x2.31inch Model: T04 Voltage: 5V Battery capacity: 120MAH Display screen: LCD display screen Measuring range: 0.000-0.199%BAC Measurement mode: quick inspection and automatic detection. Measurement time: 20 seconds Working temperature: 0-45℃ Resolution: 0.00-0.99 Preheating time: 10 seconds Blowing time: 10 seconds (usually 3-4 seconds) Reaction time: < 5 seconds Style: English version/Japanese version Package Includes: 1x Alcohol Breath Tester note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.