Protect also features a photoelectric smoke sensor, heat sensor, light sensor, ultrasonic sensors and carbon monoxide sensor, which allows the detector to turn off your furnace in the event of ...

System Sensor will show its range of accessories designed to expand the versatility and usability of its InnovairFlex™ duct smoke detectors ... tubes install from the front or the back of the detector ...

For more information on dual-sensor smoke detectors and where to place them in your home, see our CO and smoke detector buying guide.