I've presented this question elsewhere before, but maybe since then there's news about advances.
I'm interested in an ACTIVE system that can inform me if a hive is being moved without me being the one to move it. [In other words, being stolen.]
All that I've seen so far are limited by their power supply lasting only a few days at most. Obviously, a solar charger is out of the question because of size and visibility.
I'm looking for something small that will have extended power (at least 1 month---a reasonable time to get to all the hive locations and replace the battery). It doesn't have to broadcast its location constantly--only it would activate upon movement, and then send me an SMS warning. After activation, it would have to continue brodcasting its location (not necessary every second--every 5-10 minutes would probably be adequate) to a computer or GPS till located.