I don't know much about home sensor security but I assume, like most crime, prevention is key.
You can pick up wireless ip camera set ups (4+ cameras) from around £200-300 (that send images to your phone).Add that to a little research about ways to make your home seem less of a target (not leaving valuables in display,beware of dog (even if you've not got1),CCTV signs etc) and you should (hopefully) be ok
