RUTIDA Breathalyzer & Alcohol Tester with 20 Mouthpieces, Professional Breathalysers Portable Breath Digital Blue LCD Display

【Fast and high-precision sensor】Breathalyzer Features both air‑pressure and semiconductor sensors for highly accurate BAC readings, delivering faster response and higher precision than single-sensor breath testers. There is 3 unit measurement to choose - %BAC, ‰BAC, mg /l. 【Easy to use】Alcohol Tester Just insert the 3* AAA batteries, wait ~10 seconds warm-up, then blow steadily into the mouthpiece for 3–5 seconds. The LCD screen displays results instantly with colour-coded alert (green/yellow/red) for intuitive reading. Ideal for pre-driving checks or personal safety monitoring. 【Auto-Alarm Function】When the test result is greater than 0.2 g / L, 0.03 % BAC, or 0.15mg / L, the indicator light of the alcohol detector will change to inform you so that you can make a better judgment. 【Tips】After drinking, wait 20 minutes to perform the test, the result will be more accurate. The readings of this product are for reference only and cannot replace professional medical or legal advice. Please always follow local drinking and driving regulations. 【Excellent gift】Alcohol tester brethalizers come with 20 interchangeable mouthpieces that can be cleaned and reused. Suitable for personal use, home, social events, and certain industries that require alcohol testing, such as operating heavy machinery or driving. It is the perfect gift for your boyfriend, father, husband, grandfather, son, and boss.