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The SD505-DUCTR Addressable duct smoke detector provides early detection of smoke and products of combustion present in air moving through an HVAC duct to prevent re-circulation of smoke into the air handling system. The SD505-DUCTR is a heavy duty metal housing with a pre-installed SD505-APS Analog Photo Electric Smoke Sensor and relay module. When smoke is detected in a duct, the unit communicates the condition to the IntelliKnight FACP. The built-in relay module, in turn, turns off fans, blowers, and other devices.
The SD505-DTS-K is a remote switch that is used with the SD505-DUCTR so you can remote test the Duct Detector. It also provides LED indication of the status of the SD505-DUCTR. The SD505-DTS-K uses the same key as the control panel.