Silent Knight SD505-DTS-K Duct Smoke Detector with Relay and Remote Test Switch (Replaces SD505-DTS)

Brand: Silent Knight by Honeywell
ADI #:SK-SD505DTSK Model #: SD505-DTS-K  Name: Silent Knight SD505-DTS-K Duct Smoke Detector with Relay and Remote Test Switch (Replaces SD505-DTS)