Has anyone tried any of the electronic child tracking systems? If so, what did you get and how was the experience?

Jordan just really makes me nervous now. At the end of July we're going to Sea World. I would like to get some kind of tracking system for her (maybe tyler too). Really need some opinions.
I saw these on ebay...not sure if anyone has them or similar...
Pink Wireless Child Locator

Giggle Bug Child Locator

nope, so does that mean you didnt get that one you had posted about too that had a mistake on the price? I had gotten the email saying they couldnt honor the price............darn them.....lol. Hopefully someone here will be able to hep you out.

I got that email too, saying they made a huge price mistake. I emailed them back and totally went off on them - didn't work. So no I didn't get that. It was the in-reach child tracking system. I don't want to spend over $50 on a system if a $20 one will work just the same.