1、Non Contact Detection: Breath alcohol tester is designed with gas receiving hole for non contact blowing detection. 4 seconds of blowing time is very fast 2、Detection Range: Alcohol tester has built in high accuracy sensor chip, with ±0.005% BAC detection, 0.00‑0.19% BAC 0‑0.95mg/L detection range 3、200mAh Rechargeable: Rechargeable alcohol tester has built in 200mAh rechargeable polymer battery, can be used 300 times continuously, support Type C charging port suitable for cell phone, computer, headphone charging port 4、Accurate Alarm Mode: <0.01% BAC; 0.02% BAC‑0.05% BAC; ≥0.08% BAC, corresponding to green, yellow and red lights, indicating safety, warning and danger respectively. When the yellow light and red light are on, the alarm will be issued at the same time 5、Small and Portable: Portable alcohol tester has a compact body, which can be placed on the car console and used at any time. Portable size for travel