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DNR DNR  no detector, no relay
DNR intelligent non-relay Photoelectric Duct Smoke Detector features a pivoting housing that fits both square and rectangular footprints capable of mounting to a round or rectangular duct. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 0.5 m/s to 20.32 m/sec, temperatures of –20°C to 70 °C and a humidity range of 0 to 95 percent (non condensing).

DNRW DNRW
DNR intelligent watertight non-relay Photoelectric Duct Smoke Detector features a pivoting housing that fits both square and rectangular footprints capable of mounting to a round or rectangular duct. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 0.5 m/s to 20.32 m/sec, temperatures of –20°C to 70 °C and a humidity range of 0 to 95 percent (non condensing).

DNRHS DNRHS
DNRHS high sensitivity duct smoke detector provides very early warning of fires to protect high-value assets and mission critical operations from fire and the spread of damaging smoke through air management systems. The detector’s intelligent laser sensor can detect miniscule amounts of smoke flowing through duct work at air velocities from 300 to 4,000 feet per minute — ideal for environments with high-velocity, high-volume air changes.

RTS151KIT
6500RTS is a remote annunicator and control unit for use with the duct smoke detectors. It is ideal for installations where access to the detector is restricted.

DST1 DST1, DST1.5, DST3, DST5 and DST10
(Sampling tubes for DNR & DNRW Photoelectric Duct Detectors)
DST1
DST1.5
DST3
DST5
DST10
Sampling Tube for up to 0.3m duct.
Sampling Tube for 0.3 - 0.6m duct.
Sampling Tube for 0.6 - 1.2m duct.
Sampling Tube for 1.2 - 2.4m duct.
Sampling Tube for 2.4 - 3.7m duct.

7251DH 7251DH Discontinued product
The 7251DH High Sensitivity duct smoke detector provides dependable performance for management of fans, blowers, and air conditioning systems by using an intelligent laser smoke sensor residing in an efficient housing design that samples air currents passing through a duct.

DH200PL DH200PL Discontinued product
DH200 Series Duct Detectors samples air currents passing through a duct and gives dependable performance for shutdown of fans, blowers, and air conditioning systems, preventing the spread of toxic smoke and fire gases through the protected area.

DH200RPL DH200RPL Discontinued product
DH200 Series Duct Detectors samples air currents passing through a duct and gives dependable performance for shutdown of fans, blowers, and air conditioning systems, preventing the spread of toxic smoke and fire gases through the protected area. Can be configured as a relay version or jumpered to mimic a non-relay version

DH500 DH500 Discontinued product
Duct Housing, that samples air currents passing through a duct and gives dependable performance for shutdown of fans, blowers, and air conditioning systems, preventing the spread of toxic smoke and fire gases through the protected area.

DH500AC/DC DH500AC/DC Discontinued product
Duct Housing, that samples air currents passing through a duct and gives dependable performance for shutdown of fans, blowers, and air conditioning systems, preventing the spread of toxic smoke and fire gases through the protected area. Using an external 24V AC or DC supply, the unit also provides two changeover relay contacts suitable for electrical equipment shutdown and a powered output suitable for a sounder or a remote LED.

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