Smartware RM174RF/4 Vernetztbare Wireless Smoke Detector/Fire Alarm Gepüft According to DIN EN14604 Coupleable/Verlinkbar and Expanded, Set of 4 : Amazon.co.uk: DIY & Tools
RM175RF/RM174RF - How to pair multiple smoke alarms : Smartwares
Smartwares Smoke detector manuals
Smartware RM174RF/4 Vernetztbare Wireless Smoke Detector/Fire Alarm Gepüft According to DIN EN14604 Coupleable/Verlinkbar and Expanded, Set of 4 : Amazon.co.uk: DIY & Tools