A smart alarm is typically wireless (although doesn’t have to be), which means they are less disruptive to install than a hard-wired system.

They have all the same components as a traditional home alarm (control panel, keypad, movement detectors, door contacts, external siren etc.), but are also connected to a secure cloud server typically via your wireless router (aka home broadband), or via GPRS signal over the GSM (mobile phone) network.