An indoor fire detection system might have optical sensors that look for smoke, thermal sensors that detect rising temperatures, and sensors for CO and CO 2 gas.

A smart smoke detector can warn you of fire in its early stages, giving you enough time to get to safety. We review five top picks to buy.

According to the National Fire Agency, the number of fire engine dispatches between 2021 and July 2022 was as many as 258,220, and 96.6% of them were due to alarm malfunctions.

Most household smoke detectors employ either an ionization or photoelectric (optical) sensor to detect a fire. Each uses a different method to sense the presence of smoke. Photoelectric smoke ...