Air Blow Alcohol Tester Alcohol Concentration Test Stick 1. Range: 0-400mg100ml BAC (blood alcohol concentration) 2. Measurement mode: quick screening, automatic pumping 3. Ambient pressure: 600-1400hPa 4. Battery: 3.7V3000mAh 5. Data storage: 80,000 data records can be stored 6. OLED display with backlight function, easy to deal with the night environment 7. USB interface, can be connected to a computer to store data, can be connected to a charger 8. Multi-function buttons, wear-resistant and stable buttons are sensitive 9. Waterproof and dustproof air inlet, increase the service life of the instrument 10. Electronic whistle prompt, soundindicator double alarm 11. Multifunctional baton, more sensitive measurement 12. Dimensions: 340.5x31mm 13. Weight: 320 grams