Alcohol Tester Portable High Accuracy Breathalyzer Non-Contacting Alcohol Detector USB Rechargeable with Digital LED Screen Alarm Function Portable tester helps you quickly detect the concentration, with high sensing chip, the measurement is more accurate. Blowing detection, no mouthpiece needed, the measurement is healthier. Alcohol Tester Portable High Accuracy Breathalyzer Non-Contacting Alcohol Detector USB Rechargeable with Digital LED Screen Alarm Function: Portable tester, large LED display, accurate readings, with three-level indicator lights, the test results are clear at a glance.Built-in high-capacity battery, low power consumption, long standby time, one full charge can be used about 150 times.Non-contact detection, direct blowing, it avoids the growth of bacterias in the blowpipe, and the measurement method is healthier.Equipped with intelligent chips, high-sensitivity sensors, the detection results are more accurate, and the sound alarm function is supported.Premium ABS material, fine workmanship and long service time. Small and portable, convenient for testing anytime, anywhere.It can help you scientifically filter, purify impurities, retain , and make the test result closer to the bloods concentration. Specifications: Item Weight: 19g/ 0.7oz Battery: Built-in 3.7V, 120mAh Lithium Battery Response Time: