08 Mar '13, 2pm

Quick wallet hack adds pickpocket alarm

I had the idea to make some kind of alarm that would go off if anyone but me removed the wallet from my pocket. A quick google search revealed tons of wallet alarms, but I noticed that they all had a credit card form factor(that’s good) and would make noise when exposed to light(that’s bad). This represents a problem since the pickpockets in the videos tended not to open the wallets till later at another location. I needed something that would make noise as it was removed from my pocket. Most importantly, I needed the alarm to be located inside the wallet. This immediately makes the wallet undesirable and will hopefully make someone drop it like hot coals.

Full article: http://hackaday.com/2013/03/08/quick-wallet-hack-adds-pic...

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