Why You Choose Us? * Convenient and Portable: Pushbutton Operation Breathalyzer, Portable Alcohol Breathalyzer. * Easy to Read: Breathalyzer with light orange backed digital LED display that is easy to read even in low light conditions. * Energy Saving: Our breathalyzer can set automatic shutdown. And low power instructions are designed. How to Use ? 1. Press and hold the power button for 3 seconds, the alcohol control LCD screen will light up and beep (the sensor may take longer to warm up after the first power on or after a long period of inactivity, try again and wait at least 3 minutes) 2.When you successfully enter the heating mode, breathalyzer display "Warm up" and wait 10 seconds. 3.When the warm-up is complete, breathalyzer the "Blow" symbol will be displayed and a 10 second countdown will begin, indicating it is currently in test mode.After taking a deep breath, blow out the gas with normal force for 3-5 seconds. 4.Read the test results from the alcohol meter LCD display. Specifications * Product name: High precision professional alcohol tester * Product model: AT-65s * Sensors: advanced sensors for semiconductor oxide alcohols * Range: 0.00% -0.19% BAC (0.0-1.9 g / L) * Accuracy: -0.01% to 0.02% to 0.05% BAC * Warm-up time: 10 seconds * Response time: 10 seconds * Operating temperature range: -10 ? ~ 50 ? * Digital display results: (% BAC / ‰ BAC / mg / L) *Power consumption: 2 "AAA" 1.5V alkaline batteries (not included) Package Included 1x Alcohol Tester 5x Mouthpieces 1x User Manual Note It always has a large number of gas & impurity adsorbed on the surface of alcohol tester, when first time taking out the tester from the packaging, or after long time no using for the tester, it need more time for cleaning and warm up the sensor, you should repress the power button and retry several times if possible.

?Portable Design?This professional alcohol breathalyzer just need small space, can be easily carried in your wallet or pocket everywhere.Great for wedding, parties, feast or other social activities, ensures your safe driving after drinking. ?Easy To Use? Just press the power button for 3 second to start the professional alcohol tester, wait 10 seconds for heating, then blow for 3-5 seconds, the result will be ready after 3-4 seconds, and it will be displayed on the LCD screen for 10 seconds. ?Energy Savings?Breathalyzer can set automatic shutdown. Powered by two AAA batteries (not included), it automatically turns off after 10 seconds to save power. Each time you install a battery, you can test more than 80 times. In addition, low-power instructions were designed. ?Easy To Read Lcd Display Light?With the LCD display, breathalyzer is easier to read even in less than optimal light conditions and offer professional precision for safe driving. It will give you an alarm by beeping when the allowable limit is exceeded and the warning and danger symbol is displayed. ?Sensitivity & High Precision?Alcohol tester meets police-level accuracy.Breathalyzerhas intelligent sensors, semiconductors and microprocessors capable of converting the input signal into accurate and precise results.

Best Sellers Rank: See Top 100 in Health & Household. : B08ZYCC7XX. Manufacturer: Seven-first. Date First Available: January 25, 2021. Department: Unisex-adult. Item model number: Breathalyzer. Package Dimensions: 5.24 x 3.11 x 1.22 inches; 2.43 Ounces. Is Discontinued By Manufacturer: No.