User Manual

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The information contained within this document is confidential and proprietary. It may not be reproduced without the
specific written permission of Alcohol Monitoring Systems, LLC.
The SCRAM Bracelet
The SCRAM Bracelet consists of two different parts:
• The first part contains a fuel cell detector, which tests vapor as it evaporates through the skin to
determine alcohol concentration on a pre-determined schedule.
• The second part contains a compilation of electronics for tamper detection, power control,
temperature sensing, and for collecting, storing, and transferring data. A tamper detection strap
acts as an electronic link between the two parts, and secures the bracelet to the client’s ankle.
The SCRAM Bracelet
Determining Alcohol Concentration
Legal alcohol intoxication cannot be determined on the basis of the amount of alcohol a person has
consumed, since the exact quantity consumed, times of ingestion, body weight, rate of absorption and
elimination vary from person to person. After consumption, alcohol rapidly becomes associated with
all parts of the body, and concentrations of alcohol will be proportional to body water content.
Consequently, law enforcement officials have traditionally estimated the total amount of alcohol in
the body by determining a Blood Alcohol Concentration (BAC).
In order to obtain a BAC reading, law enforcement officials typically conduct a breath analysis test,
which measures alcohol concentration in breath perspiration. Unfortunately, breath analysis tests
require “deep lung” breath samples, which are sometimes difficult to obtain and require client
involvement.
The SCRAM Bracelet uses a new and less invasive form of alcohol testing—transdermal
measurement, which tests vapor as it escapes through the skin when we sweat. Literally translated,
transdermal means “transfer through the skin.” Since the water concentration in the skin is very low
in comparison to other organs of the body, alcohol migrates last through the skin, resulting in a
slightly slower, but ultimately accurate, alcohol reading that directly correlates with breath analysis
results.
NOTE: Since the SCRAM system can detect alcohol concentrations to as low as .020%, clients are
prohibited from using products such as aftershave, perfume, and shower gels that contain alcohol
while wearing the bracelet because these products might generate a false positive alcohol reading.