1、Non Contact Detector: Designed with gas receiving holes, 4 seconds non‑contact blowing detection. Save money and be healthy. 2、High Accuracy: Built‑in imported high‑precision sensor chip, detection accuracy of ±0.01% BAC, detection range of 0.00‑0.19% BAC (0‑1.9G/L). 3、Accurate Alarm Mode: <0.01% BAC; 0.02% BAC‑0.05% BAC; ≥0.08% BAC, corresponding to green, yellow and red lights respectively, indicating safety, warning and danger. 4、Portable Design: Small and portable, the alcohol tester can be placed on the car console and ready to use. Good for travel. 5、Personal Professional Use: From personal, parental, to banquet, bar or professional use, a quick, easy and reliable way to test their blood alcohol level.