Professional Breathalyzer Tester

When using the Breathalyzer first insert two AA batteries press the power button to start then click the middle button again to enter the alcohol test mode after preheating for 20 seconds blow for 5 seconds and you can get the result. In order to get a more accurate result please test 3 times every 8-10 minutes and take the average value Accurate Measurement: The breathalyzers for alcohol uses a high-precision semiconductor alcohol sensor with four measurement units: %BAC ‰BAC mg/L g/L. When using the device for the first time or if it has not been used for a long time you must warm it up three times: Turn on the device and wait for it to turn off. Repeat this process three times. Then blow into the breathalyzer and take a measurement Sound&Color Prompts: When the alcohol breathalyzer tester test result is higher than 0.050% BAC or 0.500‰ BAC the display will turn red and emit a "di di di..." alarm sound to remind you. The measuring range of the product is 0 to 0.199% BAC 0.199% BAC is the maximum value Easy to Carry: The portable breathalyzer measures 157x112x36mm and weighs only 60 grams which can be easily put into a wallet or pocket. It comes with 10 reusable mouthpieces suitable for weddings parties banquets or other social events to ensure safe driving after drinking Products&Services: 1*breathalyzer 10*replaceable mouthpieces 1*user manual 1*carrying bag 1-year warranty service. Any faults during this period can be repaired or replaced free of charge