Features: According to the degree of alcohol exceeding the limit, different beeping sounds will be emitted. Highly sensitive semiconductor sensors, fast speed and accurate data. 3-color backlight, LCD display for easy reading. One button operation, easy to use, the test value can be completed quickly. Built in 300mah rechargeable battery, the package includes USB-C charging line, convenient charging, energy saving and environmental conservation. Specifications: Item: Automatic Alcohol Tester Main Color: White Material: ABS Warm up Time: 15 Seconds Blowing Time: 5 Seconds Display: LCD Display Charging Time: 2 hours Operating Temperature: 32 F ~104 F Battery: 3.7V 300mah Size: 11.9*5.5*1.7cm Default warning value 0.02% BAC (adjustable) Detection Range- Deviation 0-0.19%BAC 0.01%BAC 0-1.99BAC 0.1BAC 0-1.99 g/L 0.01g/L 0-0.995mg/L 0.05mg/L 0-199mg/100ml 10mg/100ml 0-1.99Prom 0.1Prom Package Size: 15*10*5cm Package Weight: 200g PackageList: 1* Automatic Alcohol Tester 1* Type-C Charging Cable 10* Test Nozzle 1* Storage Bag