The burglar alarm is very powerful as it is but can be expanded with a range of easy-fit Wi-Fi accessorie These include bodily worn SOS buttons for the old and vulnerable, door/window contacts, video doorbells, perimeter alarms, PIR sensors, sirens, strobes etc. However, most of this is already done by the Elephant system. There are external body sensors, lights and alarms to cover the outside. The cameras detect movement and send a warning to your phone, so you know if somebody approaches. The only thing you might want to add is a bodily worn SOS sensor if there is somebody old or sick present.