Description
- Press and hold the power button for 1 second, the LCD alcohol tester turns on with a beep sound.
- . Warm-up mode countdown for 10 seconds.
- . Test mode countdown from 10 to 00 after warm-up mode, blow in this period.
- . Blow in the inhaler of breath for 3-5 seconds with normal energy after a deep inhalation
- . Read the test result from the LCD alcohol tester
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