BRK SMI105-AC Smoke Detector

Because these units are hardwired into your home's electrical system, installation involves working with live wiring. If you are not comfortable or experienced with electrical work, we strongly recommend hiring a licensed electrician to ensure the units are connected safely and correctly.

When these units are hardwired together, they act as a single system. If one detector senses smoke, every unit in the house will sound its alarm simultaneously, ensuring you are alerted regardless of where the fire starts or where you are sleeping.

The battery backup acts as a fail-safe. If your home loses power during a storm or an electrical fault, the smoke detectors will continue to function and protect your home using the battery power.

Photoelectric sensors are generally more effective at detecting smoldering fires, which are common in residential settings. They are less prone to nuisance alarms caused by cooking smoke compared to ionization sensors, making them a great choice for kitchens or hallways near living areas.

Generally, you should not mix different brands or models of hardwired smoke detectors. Interconnectivity relies on specific signaling protocols that vary between manufacturers, so it is best to replace all units in your system with the same model to ensure they communicate properly.