Alcohol Tester Portable High Accuracy Breathalyzer Non-Contacting Alcohol Detector USB Rechargeable with Digital LED Screen Alarm Function Portable alcohol tester helps you quickly detect the alcohol concentration, with high sensing chip, the measurement is more accurate. Blowing detection, no mouthpiece needed, the measurement is healthier. Features: Portable alcohol tester, large LED display, accurate readings, with three-level indicator lights, the test results are clear at a glance. It can help you scientifically filter, purify impurities, retain alcohol, and make the test result closer to the body alcohol concentration. Equipped with intelligent chips, high-sensitivity sensors, the detection results are more accurate, and the sound alarm function is supported. Non-contacting detection, direct blowing, it avoids the growth of bacte ria in the blowpipe, and the measurement method is healthier. Built-in high-capacity battery, low power consumption, long standby time, one full charge can be used about 300 times. Premium ABS material, fine workmanship and long service time. Small and portable, convenient for testing anytime, anywhere. Specifications: Color: Black Material: ABS Display: LED Screen Test Range: 0.00-0.19%BAC(0-1.9g/l) Measurement Unit: mg/l (BrAC) mg/ml (BAC) Measurement Time: 20 Seconds Power: 5V, 1A Battery: Built-in 3.7V, 140mAh Lithium Battery Warm-up Time: 10 Seconds Blowing Time: Within 10 Seconds, More Than 4 Seconds Required Response Time: <5 Seconds Working Current: 250MA (Max.) Working Temperature: 0-45℃ Item Size: 82.4 * 24 * 17.6mm/ 3.2 * 0.9 * 0.7in Item Weight: 20.5g/ 0.7in Package Size: 100 * 78 * 22mm/ 3.9 * 3.1 * 0.9in Package Weight: 49.2g/ 1.7oz Note: Recommended to perform the test 20 minutes after drinking, and the measurement results are more accurate. Packing List: 1 * Alcohol Tester 1 * USB Cable 1 * User's Manual