Key features

• •【High-Precision Sensor Technology】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.
• •【Auto-Alarm Function】When the test result is greater than 0.3 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. Tip: Wait at least 20 minutes after drinking before using for optimal accuracy.
• •【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.
• •【Energy-Saving & Portable】This professional alcohol testing kit is small in size and light in weight, which can be easily carried in a wallet or bag for on-the-go use. It automatically shuts down 10 seconds after testing to save power and extend the service life of the breathalyzer.
• •【Widely Applicable】This personal alcohol tester is suitable for parties, weddings, banquets and other social events to ensure safe driving after drinking. As a practical alcohol tester breathalyzer, these breathalysers are equipped with 20 replaceable mouthpieces that can be cleaned and reused, meeting the needs of multiple users.