SCRAM Bracelet
From MTV News:
The SCRAM bracelet, short for Secure Continuous Remote Alcohol Monitor, is a lightweight ankle bracelet designed to keep track of the wearer’s alcohol consumption through measuring his or her perspiration. After data regarding the wearer’s blood alcohol content is collected, the bracelet sends the information to the manufacturer, Alcohol Monitoring Systems.
The SCRAM bracelet is virtually tamper-proof, thanks to “an internal mechanism that if you do tamper with it, it’ll notify the remote location immediately,” attorney Mark Geragos told MTV News. As a result, SCRAM wearers are cautioned not to submerge the device in water, as the bracelet would no longer be able to record perspiration, which would be flagged by remote monitors as “an attempt to defeat” the bracelet. Said Geragos: “You’ve got to take some precautions when you shower.”