SYOSI, 2 Pcs Breathalyzer, Portable Breath Tester Breathalyzer Tester with LED Display and USB Rechargeable for Home Accurate Detection

You will receive 2 pieces of black breathalyzers, measuring about 1.1 x 0.6 x 3.74 inches, the small size which can be easily carried in pocket, or bringing to travel., Our tester is equipped with a warning sound. Press the start button to wait for 10 seconds for preheating, and then blow on the tester for 3-5 seconds. The results will automatically be displayed on the LED screen within 10 seconds., Our breathalyzer adopts a contactless air blowing design to measure in a clean way, which is convenient for multiple people to use at the same time, and can prevent direct contact with the skin., It adopts one button start and close, which is very convenient. All test results are displayed on the LCD display screen, and there are three colors indicator lights. Green indicates drivability, while orange and red indicate non drivability., You can use our portable tester to test yourself, family, or colleagues at gatherings or after meals, or when leaving home, traveling, or on business trips.