Blow-In /Non Contact personal breathalyzers : It is a non-contact blowing breathalyzer tester without mouthpiece, which is more hygienic and healthy, and recycling is more environmentally friendly.The alcohol tester uses ABS material, which is absolutely safe. Small&Portable Mini Home BreathalyzerThis is a hygienic household alcohol tester has a volume of 3.8x1.1x6.1 inches and a weight of only 24g. It is exquisite, compact, and portable with convenient storage space that can be placed anywhere in the car, and can be widely used in outdoor activities, weddings, parties, bars, and other occasions. Accurate Breathalyzer for AlcoholThis breathalyzer monitors your BAC with a high-precision semiconductor alcohol sensor to avoid excessive drinking.In order to get more reliable record,you should make the test at least 25 minutes after drinking. Sound Prompt and 3 Color Screen Display Alcohol Breathalyzer : A large screen breathalyzers for alcohol,with high visibility and easy to understand and automatic shutdown and low voltage prompts, numerical readings, alcohol content and three color detection display screen+voice dual reminder (B), 1.Green display:0.15 mg/l, yellow display 0.16mg/L-0.25mg/L, red display:0.26mg/L. When the alcohol test results display red, a continuous alarm (BBB) will be issued to remind you. Ultra-Precision 2500 Times Personal Breathalyzers Tester: The newly upgraded high-density alcohol breathalyzer tester adopts the third-generation high sensitivity aluminum sensor intelligent chip and high sensitivity sensor, which is stable and anti-interference. Accurate measurement of detection values. Within 5 seconds to ensure accurate detection in a short period of time.you can provide results to quickly understand your status.