I am thinking of overhauling / replacing my home alarm system, and would appreciate any thoughts on it.
I currently have a paradox system, and even though they are rated as good, I an very much less than impressed with the build quality of a lot of the components, so looking at everything that is on the market currently.
DIY is a must, so I must be able to buy, install, configure and maintain the system on my own. parts should be readily available from multiple suppliers.
Wireless is preferable, but having both Wired and Wireless zones is also an option.
I probably need:
5-6x indoor PIR sensors
4-5x outdoor PIR sensors
Beams? - maybe, but not sure if they are better than PIRs
No need for pet friendly - my pets are big enough that this feature is futile...
Door contacts - 5-6, but if wired I can set them all on the same zone, and not sure if it can be done with wireless contacts
Panic buttons? maybe, but not sure of their value anymore.
Remote arm, disarm, and stay functions.
Obviously integration to the armed response.
Big backup battery capacity.
Cell phone connectivity? dunno...

The last time I went through this exercise was 12 odd years ago, so I don't know what is available nowadays, any comments / opinions are welcome.