Features: brand new and high quality High-precision IC chip, for smart sensor measurement is more accurate. LED large screen high-definition display, the results do not need to be converted, accurate and sensitive, clear at a glance. Avoid blowpipe-style breeding of bacteria to blow without contact, and the measurement is healthier. The precision 4.0 algorithm makes the detection more accurate, excludes magazines, and retains alcohol. Built-in high-capacity lithium battery, USB cycle power supply, longer life. Drunk alarm reminder. Three-color indicator light, whether it exceeds the standard, it is clear at a glance. Specifications: Material:ABS Size: Approx.9.67x2.8cm/3.8x1.1inches Color:Black Accuracy: 0.00 5%-BAC Response time: <5 seconds Warm-up time: 10 seconds Power supply: USB charging port Test range: 0.000-0.199%-BAC Blowing time: 10 seconds (usually 3-5 seconds) Package Includes: 1x Breathalyzer 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.