Unlike battery-powered smoke detectors, hardwired smoke detectors are smoke alarms that connect directly to your home’s electrical system. These devices are connected to the household electrical system and typically include a battery backup in the event of a power outage. They are often interconnected, meaning that if one alarm detects smoke, all alarms in the system will sound.
Here’s a more detailed explanation from Anka Security:
Power Supply:
Hardwired smoke detectors are powered directly from your home’s electrical system, typically 120V AC.
Battery Backup:
They often also include a backup battery (usually a 9V battery) that activates during a power outage to ensure continued operation.
Interconnectivity:
A key feature of hardwired detectors is their ability to interconnect. This means that if one detector detects smoke, all interconnected detectors will sound the alarm, providing a more comprehensive alarm system.
Installation:
Hardwired detectors are typically installed by an electrician because they need to be connected to the electrical system.
Advantages:
Hardwired smoke detectors offer increased reliability due to their connection to the main power source, and their interconnected nature provides a wider safety net for occupants.
False Alarms:
Hardwired smoke detectors can still experience false alarms, just like battery-powered detectors. These can be triggered by cooking, steam, dust, or insects.
Maintenance:
While they don’t require frequent battery replacement, occasional maintenance is still required to ensure the backup battery is functioning properly and the system is functioning properly.
Building Codes:
Many building codes and insurance requirements mandate the installation of hardwired smoke detectors.
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