Yes, wired smoke detectors can be interconnected. When they’re hardwired into the same circuit, an interconnected system allows all detectors to sound an alarm simultaneously if one detects smoke. This feature ensures that, regardless of where smoke is detected, everyone in the building is alerted, which is particularly helpful for large spaces or multi-floor buildings.
In most interconnected setups, pressing the test button on one detector will also trigger alarms across all units, making it easy to verify system functionality. Interconnected detectors are often required by building codes, especially in multi-level homes and commercial buildings, to enhance safety.
