How do I calibrate my breathalyzer?
All BACtrack breathalyzer calibrations are done at our San Francisco, CA facility. In order to get your unit calibrated, follow the steps on our calibration page: Breathalyzer Calibration. You must have a credit or debit card to use this method.
If you don't have a credit or debit card, read these instructions about getting your unit calibrated and paying by check.