Meet the UMS HomeShield: a security and tracker system that works with your phone to let you track your loved ones or items. You can attach it to your firearm, door, and other belongings. You can use custom sound alerts for it. The panic button sounds a loud 50db alarm to scare away intruders.
More gadgets like this: here
This DIY mobile security and tracker system is getting funded on Indiegogo.
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