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Smoke Alarms

Ceiling-mounted smoke alarms may be battery-powered or hardwired and alert building occupants to smoke. Check the type and voltage of a smoke alarm battery.

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Smoke Alarms

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About Smoke Alarms products

Smoke alarms need to suit the building layout and the locations where occupants need warning. This category includes small smoke alarms; check each product’s instructions for its sensing method, power requirements and recommended placement.

Smoke alarms

Batteries for smoke alarms may be needed when maintaining an existing unit, but compatibility depends on the model. Check the alarm label and manufacturer’s instructions before selecting a replacement, and follow the applicable state or territory requirements for the property.

What does a smoke sensor alarm detect?

The alarm detects smoke, which may indicate a fire. Check the product instructions for details on its sensing method and placement.

Can a smoke detector use a replacement battery?

Use only a battery type specified by the alarm manufacturer. Check the instructions before replacing it, as battery requirements vary by model.

What should be checked before smoke alarm installation and replacement?

Confirm the alarm suits the building and proposed location, then check its instructions and applicable state or territory requirements. A licensed electrician can advise on electrical work.