Heat detectors monitor room temperature to provide an alarm in the event of fire.
The recalled heat detectors can fail to operate properly, not detecting the presence of fire. Chemetronics Caribe has received one report that a heat detector failed to operate in a field test, but no injuries have been reported as a result of their use. The heat detectors are components of a fire detection alarm system. They are primarily a commercial product and not sold for home use. At the center of the device is a three-level round metal disk.