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What is calibration?
Calibration is a process of adjusting the internal software so that the device gauges specific blood alcohol concentration (BAC) levels. You may relate the calibration process to winding a clock. When the clock is first set it displays the accurate time. However, over time the clock can gradually drift a few minutes, and eventually can be off by a reasonable amount if you do not occasionally reset the clock.
Calibration helps ensure that your breathalyzer is operating correctly, and is an inexpensive way to greatly increase the useful life of your breath alcohol detector.
How often should I calibrate my AlcoHAWK?
All new AlcoHAWK digital breath alcohol detectors come to you pre-calibrated, but it is recommended that you have a breath alcohol detector verified for accuracy every 6-12 months, depending on frequency of use. If you use your AlcoHAWK daily, you may need monthly calibrations.