Another gadget I stumbled across and found interesting is the “Parent/child alarm”;
Helix Child Alert
Parent and Child alert is designed to reduce the chances of a child wandering away, unnoticed in crowded locations.
The two part alarm will alert the parent when the child moves more than 5-10m from their side.
Also includes a panic button for the child to send an alert to the parent / guardian.
Price around £10
Find it on www.ebay.co.uk or here
i think personal alarms are very good idea. Just bought one myself.