System Sensor DNR Intelligent Photoelectric Duct Detector (Detector Head Sold Separately)

System Sensor DNR intelligent non-relay photoelectric duct smoke detectors feature a pivoting housing that fit both square and rectangular footprints capable of mounting to a round or rectangular duct. This unit sense smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 ft/min (0.5 to 20.32 m/s. The front cover test/reset button simplifies test/maintenance. Plug-in, tool-free sampling tubes speed installation. A cover tamper feature indicates a trouble signal for a removed or improperly installed sensor cover. The housing provides a 3/4 inch conduit knockout and ample space to facilitate easy wiring and mounting of a relay module. With these features and many more, InnovairFlex is reshaping duct smoke detection.​ Features & Benefits: Photoelectric, integrated low-flow technology. Patented sampling tube installs from front or back of the detector with no tools required. Easily accessible code wheels on sensor head (sold separately). Re