my opninon
1) get alarm with cms for house. put roof motion sensor inside roof to detection any human motion.
2) all grill must put vibration sensor.
3) door to put vibration and magnetic sensor. put 2 to three padlocks in ur front and back door grill. grill for windows must be installed inside instead outside. if the thief wan to break in, he need to go through window first then your grill. at least then alarm will be activated if equipped with alarm sensor.