System Sensor DNR Duct DetectorSystem Sensor 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,

Specifications

Amplifiers can be backed up one-to-one or multiple amplifiers can have one shared back up amplifier

Engineered for seamless integration

COMPATIBLE SMARTSYNCH CONTROL SOURCES

CSB4U-1 4″ standard detector base

Operating instructions are molded into the handle along with braille text

Operating environment: 32°F to 120°F (0°C to 49°C)

The 2951J photoelectric detector’s unique optical sensing chamber is engineered to sense smoke produced by a wide range of combustion sources

the SD505-APS offers easy installation

and have field-selectable output taps ranging from 80

10 A (or 7 A) contacts in a variety of mechanical packages

Surface-mount box available