If so, where can I find them?
—Name withheld
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I assume you are looking for a wristband children can wear so that adults will receive an alert if a small child wanders away. My Precious Kid offers a system that will alert you if your child wanders off at the mall or an amusement park. There is also the Angel Alert Child Distance Monitor, which you can purchase at Amazon.com. You can probably find other products if you search online.
In addition, there are wristbands designed for children that do not emit a signal but simply store a phone number in case a security guard, police officer or other adult finds a wandering child and needs to contact his or her parent. The Polly Klaas Foundation's website has some good information and tips for using these non-RFID wristbands.
—Mark Roberti, Founder and Editor, RFID Journal
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