Specification * 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) 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. Precaution -- Do not smoke and eat for 20 minutes prior testing. -- Do not blowing liquid into the breath pipe. -- For accurate result, do not repeat next testing within 3 minutes after last time. -- Modifying or tampering with the unit's internal components may cause a malfunction. 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.

? ?This professional alcohol breathalyzer just 4.53 x 2.75 x 1.25 inches, can be easily carried in your wallet or pocket everywhere. Great for wedding, parties, feast, banquets or after a drink at the bar, don't drink and drive!. ? ?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. ?- & - ?Breathalyzer powered by two AAA batteries (not included, but commonly available), it automatically turns off after 10 seconds to save power. Each time you install a battery, you can test more than 200 times. In addition, low-power instructions were designed. ? ?Breathalyzer is very simple and easy, making blood alcohol testing easy for all. 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. ? & ?Alcohol tester meets police-level accuracy. Breathalyzer has intelligent sensors, semiconductors and microprocessors capable of converting the input signal into accurate and precise results.

Date First Available: May 16, 2022. Is Discontinued By Manufacturer: No. Customer Reviews: 2.4 2.4 out of 5 stars 18 ratings 2.4 out of 5 stars. Item model number: 1. : B0B7MWXC77. Manufacturer: Seven-first. Department: Unisex-adult. Item Weight: 2.08 ounces. Product Dimensions: 4.8 x 2.8 x 0.8 inches.