need help from you tech-no dudes (not computer related)

[computerABUSER]

Hello All
Is there such a device that acts like a two-way pager that one device would be a transmitter and the other a receiver.

What I am looking for is to protect my camera bag. It would work like this, I put the small transmitter (like a pager) on my camera bag and then wear the receiver on my wrist and

if my camera bag is more then say 8-10 ft. away from me then ithe receiver would beep and warn me.

thanks

 

[imported_FishTaco]

I think they are called luggage alarms.

 

[FoBoT]

they make them for keeping track of your kids, the kid wears a wristband thingy and if they get to far from the parent (who has the other unit) it alarms