Recently, more discrete transdermal alcohol sensors have been developed \cite{Hair2019-rq,Lansdorp2019-kt,Campbell2018-ug,Kim_2016,Gamella_2014,Mohan_2017,Lawson_2017}. This study evaluated the relationship between breath alcohol (BrAC) and transdermal alcohol (TAC) measurements taken with the BACtrack® Skyn™ in a subject during three drinking sessions.
Method and Materials
The BACtrack® Skyn™ (BACtrack Breathalyzers, San Fransisco, California, USA) is a wrist-worn transdermal alcohol monitoring device. The Skyn™ device contains an electrochemical fuel cell to continuously monitor alcohol vapors emanating from the skin. The device records measurements every 20 seconds and transmits data via Bluetooth® to an app on the user's smartphone. Photos of the device are shown in figures \ref{365666} and \ref{168024}.