Hardwired smoke detectors have a lifespan of about 10 years. It’s recommended to replace them after that, whether or not they’re still operating, because their sensors degrade over time, potentially affecting their ability to detect smoke.
Here are the reasons and things to consider from anka security:
Sensor Degradation:
Over time, smoke detectors become less sensitive to smoke due to dust, insects, and other contaminants, or simply due to the aging of the sensor components.
Manufacturer Recommendations:
Based on testing and field experience, most manufacturers recommend replacement after 10 years.
Testing and Maintenance:
While you should test your smoke detectors monthly and replace the batteries annually (if applicable), these practices do not extend the life of the device itself.
Replacement Is Key:
Even if a hardwired smoke detector appears to be working properly, it’s critical to replace it after 10 years to ensure it’s functioning optimally and providing adequate protection.
Interconnected Systems:
If you have interconnected smoke detectors, it’s especially important to replace them at the same time to ensure they continue to work together effectively.