<br> <br> <br> <br> <br>Quickly estimate your blood alcohol concentration with this small and contactless alcohol breathalyzer. No need to worry about forget to install a mouthpiece or hygiene issue, you can directly blow to the tester inhaler without a mouthpiece, more convenient and safe. Portable to carry it with you, testing your BAC at any time and anywhere. <br> <br> <br> <br>How to Use: <br> <br> <br> <br>1. Press and hold the power button for 1 second, the alcohol tester LCD with turn on with one beep sound. <br> <br> <br> <br>2. Warm-up mode countdown for 10 seconds. <br> <br> <br> <br>3. Testing mode countdown from 10 to 00 after warm-up mode, blow at this period. <br> <br> <br> <br>4. Blow into the breath inhaler for 3-5 seconds with normal power after a deep inhalation. <br> <br> <br> <br>5. Read the test result from the alcohol tester LCD. <br> <br> <br> <br>6. Test range: 0.00%-0.19% BAC 0.0-1.9 g/L <br> <br> <br> <br>Notes: <br> <br> <br> <br>1. The first use of the tester or after a long time no use, press the power button and retry several times if possible. <br> <br> <br> <br>2. Repeatedly 2 or 3 times to obtain more accurate results. <br> <br> <br> <br>3. Do not smoke and eat for 20 minutes prior to testing. <br> <br> <br> <br>4. The test result is for reference only. <br> <br> <br> <br>5.Rechargeable with USB cable <br> <br> Package Contains <br> <br> 1*Box <br> <br> 1*Instruction <br> <br> 1*USB data cable <br> <br> 1*Alcohol Tester