What does a smoke detector sound like when it is functioning correctly?

A smoke detector that is functioning correctly typically produces a continuous loud alarm when it detects smoke or elevated temperatures. This continuous sound is designed to alert occupants to a potential fire hazard, prompting them to take immediate action to ensure their safety. The distinctiveness and volume of the alarm are crucial for capturing attention in emergency situations.

In contrast, other sounds produced by smoke detectors serve different purposes. For example, a series of quick beeps may indicate a battery low condition or malfunction, while a pulsed chirp sound can signify that the unit requires maintenance, such as changing the battery. A soft hum is not characteristic of smoke detectors and would likely suggest a non-functioning unit or an unrelated appliance. Therefore, understanding the sound of a properly functioning smoke detector is essential for recognizing and responding to fire safety alarms promptly.