I'm looking for a fairly simple set-up for the garage alone. Three separate components: dual PIR/microwave motion sensor, siren, keypad with activation/deactivation code. Mains powered (don't want to be forever changing batteries). I assume wireless would make for simpler installation, but I guess if going for mains power, the additional wiring would already be in the cable. Yes/no?
Browsing the Internet seems to throw up kits that are either much too complex or too simple. Any suggestions? Either a complete kit or separate but compatible units that I connect up myself.