Materials
BACtrack®
Breath Alcohol Analyzers
The instruments selected for this study were the BACtrack® Pro, C8, and
C6 (BACtrack® Breathalyzers, San Francisco CA, USA). One of each instrument was purchased new from an internet retailer.
The cost of the instruments was: $79, $99, and $99 for the C6, C8, and Pro respectively. The same instruments were used for the entirety of this study. The instruments cannot be calibrated locally by the end-user but must be sent back to the manufacturer every 6-12 months for recalibration.