Breathalyzer Alcohol Tester with 20 Mouthpieces, Professional Breathalysers
Breathalyzer Alcohol Tester with 20 Mouthpieces, Professional Breathalysers, Portable Alcohol Breath Tester with Dual Sensor and Digital Blue LCD Display 【Dual Sensor Technology】This alcohol tester adopts advanced semiconductor and gas double sensor, delivering faster response and higher precision than single-sensor breath testers. excellent sensitivity, more convenient for personal use. Ideal for drivers. 【Easy to use】Just insert the 3* AAA batteries, then need to press the button for seconds to start, and 10 seconds to warm up, then blow for 3-5 seconds, the result will be shown on the LCD screen later, and display two units of measurement at the same...