Help with GPS or beacon alarm

Hey Everyone.

I was thinking over the weekend and came up with an idea and I need your help to see if it would work or not.

I want to build a small project box that would hold a beacon or GPS alarm in it.

What I want to do is have a wire that would be a closed loop and the circuit would be off. If the wire is broken, then it would be open and that would turn on a beacon or GPS device that would send a signal to a cell phone and notify the user that the circuit is open. It would be powered by 2 AA batteries and use solar charging since I would need this to be out doors.

Any help? More questions I could answer?

Thanks everyone.

Dezi