Breath alcohol concentration was measured using

Results

The mean time to peak TAC lagged behind the mean time to peak BrAC by 26 minutes. The mean time to time to peak BrAC was 33 minutes, while the mean time peak TAC was 60 minutes. 
A comparison of BrAC/TAC measurements revealed an R-squared of 0.65. A comparison of BrAC/TAC in the post-45-min after drinking revealed an R-squared of 0.90.  
Figure 1 shows concomitant measurements of BrAC/TAC taken over an 8 hour period.

Discussion

The ability to easily and continuously monitor alcohol intake has many uses.

Conclusions

More research needs to be conducted.

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Currently, two transdermal devices exist to monitor alcohol in criminals of alcohol related offenses: the Secure Continuous Remote Alcohol Monitoring (SCRAM) device produced by Alcohol Monitoring Systems (AMS) and the Transdermal Alcohol Detection (TAD) system developed by BI Incorporated (BI) [1]. Both SCAM and TAD are ankle bracelets used to monitor alcohol-related offenders, and not marketed as consumer devices to the public.