An alternative to RFID for children?

The Boardbug Baby and Child Monitor set enables parents to keep tabs on their child at all times.

The Baby mode lets parents monitor sound and temperature levels and set alarms to ensure regular feeding, while the Toddler mode sends an alarm on the parent watch if the child ever wanted to wander out of the pre-set range. Plus, a “panic button” triggers an alarm on the child unit to help locate him/her once he/she’s out of sight.

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The adult unit also doubles up as a normal digital watch and displays messages like “Toddler OK.”

From Techdigest.