In KNX, a "Technical Alarm" (water leak, smoke detection, equipment fault) is distinct from an "Intrusion Alarm" (break-in), because the EN 50131 standards require a separate certified system for anti-intrusion alarms.

The distinction is both regulatory and functional. A Technical Alarm can be 100% KNX (smoke detector, flood contact, technical fault) and is not certified against burglary. An Intrusion Alarm must be a dedicated EN 50131 certified system (grade 1-4), self-contained with a backup battery and a link to a monitoring centre. KNX can interact WITH the intrusion alarm (receive its states for visualisation, trigger an "away" mode) but cannot replace it.

Document this boundary in the handover file — clients often expect "my KNX house alarm" to be insurance-grade, which it legally is not.