Interlinking Alarm devices work by connecting multiple Alarm-devices by a radio-signal. So that when one device goes into the alarm status, all devices go into the alarm status and sound the alarm simultaneously. This system enhances safety by ensuring early warning throughout the entire building, even if the fire/CO starts in a distant area. Interlinking can be done wirelessly or through hardwiring, and it's ideal for larger homes or multi-story buildings.