PEAKGEAR Breathalyser with USB Battery, Professional Alcohol Meter, Police Accurate with Digital Blue LCD Display, Mouthpieces Unnecessary, Alcohol Tester, for Use at Home or at Parties

Reliably accurate: This breathalyser has a high-precision semiconductor alcohol sensor. It can quickly provide a result to judge whether you can drive or not. Range of 0.00%~0.19%BAC/0.0~1.9g/l; can be used for testing friends in bars and family members at house parties Easy to use: this alcohol tester consists of built-in 300 mAh batteries, with USB battery, wait 15 seconds to warm up and then blow into the alcohol tester for 5 seconds. After another 3 seconds, the result will be displayed on the LCD screen of the alcohol meter Portable - Hygiene: This alcohol tester uses a safe and healthy non-contact, weighs only 58 g, can be easily carried in your handbag or pocket. The breath alcohol meter is automatically switched off 15 seconds after completing the test; you do not need to use the blow tube. (Blow pipe can cause bacteria) Versatile use: breathalyser police precise can be used at parties to test whether you or your friends are drunk or as a fun tool for connecting to people; suitable for use at parties, bars, at home, in the car; a meaningful gift for a family member or a friend who likes to drink something Acoustic alarm: test result is over 0.03% BAC or 0.30 g/l, alcohol tester emits a continuous beep and to remind drivers not to drive. Note: after drinking, wait 20 minutes before using the breath alcohol test, please test 3 times in a row and take the average value to ensure the accuracy