System Sensor DNR SF 15/01 These horns may be mounted

These horns may be mounted to any solid surface using two bolts (by others)

diameter base product

The NOTIFIER® FST-951 Series intelligent thermal detectors are designed for both performance and aesthetics

checking the spread of smoke and flames

System Sensor DNR SF 15/01 These horns may be mountedThe Honeywell DNR intelligent non relay photoelectric duct smoke detector and DNRW watertight non relay photoelectric duct smoke detector feature a pivoting housing that fits both square and rectangular footprints capable of mounting to a round or rectangular duct. The DNRW duct smoke detector, with its NEMA 4 rating, is listed as a watertight, UV resistant enclosure providing protection against falling dirt, rain, and windblown dust, splashing and