Detail:

3 UNIQUE FEATURES: A) the breathalyzer test rating is adjustable with 6 common-used units (%BAC-US, g/l-EU, mg/L-JP, mg/100ml-CN, ‰BAC-RU, ‰prom-PL); B) CAUTION and ALARMING values can be set by users based on your own need; C) up to 32 recent testing records for your checking

SMART ALARM FUNCTION & ENERGY-SAVED DESIGN: (BAC can be set by yourself) when the test result is higher than 0.05% BAC / 0.5 ‰ BAC (factory default setting), the red light of digital breathalyzer flashes and a continuous drop sound is emitted to remind the user. Powered by 3AAA alkaline batteries (not included), it will auto power-off to save power after finishing the test for 5 seconds. Moreover, it is designed with low voltage indication

EASY TO USE: Just press the power button for 2 seconds to start the professional breathalyzer alcohol tester, wait for 20 seconds for warming-up, then blow with the tester for 5-6 seconds, the result will be ready after 3 seconds, and it will be displayed on the LCD screen for 15 seconds

NOTE: In order to make the test results accurately, please test with the alcohol breathalyzer 20 minutes later after drinking; please wait for another 3 minutes before starting the next test to get the precise testing result

WARRANTY POLICY: JASTEK breathalyzer alcohol tester provides the most accurate and convenient alcohol test, if you are not satisfied or have any quality problems, please feel free to contact us, our alcohol breathalyzer tester will be with 12-month replacement warranty