A small amount of any alcohol you consume evaporates through your skin. With the benefit of funding from the National Institutes of Health, Giner has developed an alcohol sensor that accurately measures your alcohol consumption based on the volume of alcohol coming through the skin.

Wrist transdermal alcohol sensor

We call it the Wrist Transdermal Alcohol Sensor — WrisTAS — because you can wear it discretely on your wrist, or on just about any part of your body where blood vessels are close to the skin surface. It monitors your blood alcohol level continuously and communicates the readings to any handheld device — no need to blow into a breathalyzer!

We sell thousands of our sensors every year for use in the criminal justice system. It is typically a condition of parole that an offender completely abstain from alcohol: our sensor is integrated into offender monitoring bracelets and provides immediate alerts if an offender is drinking alcohol.

WrisTAS

The Giner technology has also been used in multiple research trials in the US; in particular, it has been used frequently by leading alcoholism researchers, such as Robert Swift MD, PhD, of Brown University, who are attracted by the possibility to get access to objective information about the level and timing of an individual’s alcohol consumption.

Giner is now working with companies worldwide who are aiming to introduce a low cost consumer biosensor device for alcohol consumption.

The chart below shows Giner’s WrisTAS technology at work. On the horizontal axis is time shown in hours, and on the vertical axis is alcohol as a % of the subject’s blood measured by the Giner sensor. In this extreme case study for a BBC documentary, the subject consumed a large number of alcohol shots over a 4-hour period, as shown by the X marks at the left of the chart.

The chart shows the steady increase in blood alcohol content as the shots are consumed. Blood alcohol content peaks at around 1am at just over 0.3%. It then takes over 8 hours for blood alcohol content to decline below the dotted green line indicating a typical “legal limit” for driving of 0.08%.

chart showing WrisTAS technology measuring subject’s blood alcohol leves over time

 

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