Feature: 1. According to the degree of alcohol exceeding the limit, different beeping sounds will be emitted. 2. Highly sensitive semiconductor sensors, fast speed and accurate data. 3. 3-color backlight, LCD display for easy reading. 4. One button operation, easy to use, the test value can be completed quickly. 5. Built in 300mah rechargeable battery, the package includes USB-C charging line, convenient charging, energy saving and environmental conservation. Specification: 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 0-1.99‰BAC ±0.1‰BAC 0-1.99 g/L ±0.01g/L 0-0.995mg/L ±0.05mg/L 0-199mg/100ml ±10mg/100ml 0-1.99‰Prom ±0.1‰Prom Package Size: 15*10*5cm Package Weight: 200g Package List: 1* Automatic Alcohol Tester 1* Type-C Charging Cable 10* Test Nozzle 1* Storage Bag Package List: 1* Automatic Alcohol Tester 1* Type-C Charging Cable 10* Test Nozzle 1* Storage Bag