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Audio and graphic warningWith 3 blowpipesDigital displayUsed to display the alcohol content in exhaled breathMeasuring range: 0.2 - 1.5‰ ("LO" < 0.2‰)Warning calibration value: > 0.2‰Unit: ‰Digital LCD display with bi-color backlightTemperature indicatorAudio and video signalsAutomatic self-cl..