1. Model: AM01 2. Sensor type: Semiconductor sensor 3. Display: LCD liquid crystal display 4. Testing range: 0.00 - 0.19% blood alcohol concentration (BAC) (0 - 1.9 g/L) 5. Measurement units: g/L; mg/mL (BAC) 6. Measurement mode: Quick troubleshooting, automatic detection 7. Measurement time: 20 seconds 8. Power supply mode: Built - in rechargeable polymer lithium battery 9. Battery specification: 3.7V 120 mAh 10. Power adapter requirements: DC 5V 1A 11. Operating temperature: 0 - 45°C 12. Pre - heating time: 10 seconds 13. Blowing time: 10 seconds, at least 4 seconds 14. Reaction time: Less than 5 seconds 15. Operating current: Maximum 250 mA 16. Standby current: Less than 20 μA 17. Material: Plastic 18. Color: Black 19. Package contents: - 1 tester 20. Only the above package contents are included, and other products may not be included. 21. Note: Light reflection and different displays may cause slight differences between the color of the items in the picture and the actual product. The allowable measurement error is +/- 1 - 3 cm.