Suewidfay Breathalyzers Breath Tester, Portable High Accuracy Alcohol Detector, USB Rechargeable Alcohol Breathalyser with LCD Display Digital Fast, Accurate Blood Alcohol Content Result

Precise alcohol testing: The built-in high-sensitivity component can remove the impurities in your breath, makes the detection of alcohol concentration more accurate and faster in drunk driving, saving time and energy.
LCD screen display: The handle is equipped with a screen digital display, which is more convenient for reading. The machine will power off automatically after use to save energy.
Three color indicators: There are green, yellow and red LED indicators which mean safety, caution, and danger respectively. The corresponding light will light up when alcohol is detected and alarm sound is heard, reminding you the testing results.
Premium quality: The alcohol tester is made of high-quality plastic material which is smooth and non-toxic, so it is absolutely safe for people to use. It is also sturdy and durable for long service life.
Easy to use: The alcohol machine is very easy to use. Press the power switch for 2 seconds to turn it on, and warm it up for 10 seconds, then take a deep breath and blow at the breath for 10 seconds, after that you can get the accurate results.