Function: Easy-to-use alcohol meter functions: nanometer semiconductor alcohol sensor. One-click operation. Stable performance: automatic shutdown, saving electricity. Digital backlit display LCD in orange. Quick response and recovery capabilities. Portable and smart: portable design. Automatic alarm sound. The Tester of alcohol in exhaled air has intelligent MCU control. Wide application: Professional breathalyzer is suitable for use in workplaces, hospitals, alcohol clinics or as a personal breathalyzer. Indicator and display LED: Equipped with we low battery indicator, alarm sound when alcohol is detected and glossy LED screen with one operation button. Specification: Item Type: Tester Alcohol Material: ABS Kolor black Sensor: High Sensitivity Semiconductor Alcohol Sensor Accuracy: -0,01 0,02% BAC (alarm at 0,05% bac) Test Range: 0,00-019% BAC (0,0-1,9 g/L) Heating time: 10 seconds Blowing time: within 10 seconds Response time: <5 seconds Automatic shutdown: 10 seconds after the result is displayed Working environment: 5 -40 List of packages: 1 x tester alcohol 1 x description 3 x Gas Mouth Note: To get the most reliable record, it is recommended to perform the test at least 20 minutes after drinking. Also, wait at least 3 minutes after the last test before starting the next test. Heat up: 1. Press the switch button for 3 seconds, the tester's liquid crystal display will be started when the sound drops. 2. Warping up will appear on the screen, after which the countdown will start from 10 to 00 in Warping mode. (Please note that oxidation occurs on the surface of the sensor when the tester has not been used for a long time, so during the tester removed from the package for the first time or when the tester has not been used for a long time, the product should be warmed up as many times as possible before performing the alcohol test. ) Test method: 1. After warming up the warp, a blow sign appears on the screen, and in test mode, the countdown from 10 to 00 begins. 2. Exhale moderately through the mouthpiece for three to five seconds 3. Read the test result from the tester display. 4. If the alcohol concentration is within the following range, a logo Caution will appear on the screen. 002% or higher BAC (or 0,2/I) < 005% BAC (or 0,5/I) 5. If the alcohol concentration is within the specified range, a danger sign will appear on the screen and a warning sound will sound. 005% or higher BAC (or 0,5/I)