A smoke detector is a device that senses smoke, typically as an indicator of fire. Commercial security devices issue a signal to a fire alarm control panel as part of a fire alarm system, while household detectors, known as smoke alarms, generally issue a local audible or visual alarm from the detector itself.















![[NSW] Free Smoke Alarm Installation for Eligible Tenants or High Risk Individuals @ Fire and Rescue NSW](https://files.ozbargain.com.au/n/53/614253.jpg?h=fc7f8b1e)


![[VIC] FireSmart Smoke Alarm $2 @ Kmart Boronia](https://files.ozbargain.com.au/n/37/580137.jpg?h=bebfa293)

