Dustproof designThis breathalyzer can measure the alcohol concentration in the exhaled breath just by blowing on it, nd it is healthier and safer than the direct inlet type. Alcohol tester breathalyzer is a best gift for your family and friends.High Accuracy breathaliserOur alcosense breathalyser is designed with ultra-sensitive semiconductor sensor system, which can ensure that your alcohol content is determined within a few seconds, help you make the right decision when drinking, and ensure driving safety.High precision and digital LCD displayThe high-precision alcohol detector makes the data easy to read. The LED display is used, making it easy to see the displayed values even at dark nights. With the indicator light, you can see the test result at a glance. Please note that the red light means drinking, the green light means alcohol-free and safe, and the yellow light means drinking.Easy To CarryThe portable breath tester comes with a key chain, and you can prevent it from being lost with a car key and chain. With a space-saving, lightweight, portable design, only the size of a pocket, it is completely easy to carry and carry anywhere.USB chargingBreath alcohol analyser convenient recharge by using USB cable. It can be connected directly to a USB adapter, mobile battery, in-vehicle charger, PC, etc. for quick charging. The alcohol checker has a built-in 200mAH battery and can be used about 300 times in one hour, which is energy-saving and durable.