Key features

• •AUTOMATIC ENERGY-SAVING : It can set automatic shutdown, powered by 2AAA batteries, automatically shut down after 15 seconds to save power, every time you install a battery, you can test more than 300 times. In addition, low power instructions are designed.
• •HIGH ACCURACY AND SENSITIVE : BESWORLDS 2020 Professional Breathalyzer is equipped with a high-quality fuel cell sensor module for a long life and accurate results, Do not use the breath analyzer until it has been 20 minutes since the last drink, please wait at least 3 minutes to begin next test after the last test, it warned audio and video, warn you.
• •ONE-BUTTON OPERATION: Professional Breathalyzer is extremely easy to use, simply insert the two AA batteries（not included, power on your breathalyzer, and begin testing. It's that easy, your BAC results are displayed 10 seconds later on a bright, easy to read LCD display.
• •SMALL & PORTABLE SIZE : Smallest professional breathalyzer, making it easy to take with you anywhere you go, measuring just 4.92 x 3.14 x 1.37 inches, and easily fits in a purse or pocket.
• •What You Get : 1 x Professional Breathalyzer, 1 x User's Manual, 5 x Mouthpieces,1 x Key chain, 1 x carrying case and Our Worry-free 6-month warranty and friendly customer service, contact us anytime!