All breath analyzers — regardless of quality — require regular calibration to maintain accuracy. Over time, sensor drift can cause readings to deviate from true values, leading to false positives or negatives.
Most professional-grade devices should be calibrated every 6 months or after 500 tests, whichever comes first. High-use devices in industrial or law enforcement settings may require more frequent calibration.
The calibration process involves exposing the device to a gas standard of known ethanol concentration and adjusting the device's output to match. AlcoBreath's CAL-Kit provides NIST-traceable standards compatible with all our devices.
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