Detector self-diagnostic smoke 2-wire photoelectric 24V

Combination photoelectric smoke detector or fixed rate-of-rise heat detector includes fast response algorithms. These allow the heat sensors to work intelligently with the photoelectric smoke sensor. When the heat sensor detects a rise in temperature of more than 15 degrees per minute, the sensitivity of the photoelectric sensor automatically increases, allowing it to detect smaller particles of combustion much more rapidly than it would acting on its own.