System Sensor Conventional Duct Detection

Conventional

System Sensor

System Sensor ST-10 Metal Sampling Tube, 8'-12' Duct Widths

JMAC# SYSTEM-SENSOR-ST-10

Metal sampling tube, for duct widths 8' - 12'. For use with legacy duct smoke detector models, DH100, DH200, DH400 and DH500 series detectors. UPC: 783863000782Also known as: BK-ST10, ST10
MSRP:

Was:

Now: $60.50

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System Sensor

System Sensor PR-2 Epoxy Encapsulated Relay with Activation LED, SPDT, Red LED

JMAC# SYSTEM-SENSOR-PR-2

Model PR-2 and PR-3 are epoxy encapsulated single pull double throw (SPDT) relays that are activated by 10 to 40 VDC. The PR-2 also uses a red LED as a visible indication of relay coil energization...

MSRP:

Was:

Now: $20.74

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System Sensor

System Sensor ST-3 Metal Sampling Tube, 2'-4' Duct Widths

JMAC# SYSTEM-SENSOR-ST-3

Metal sampling tube, for duct widths 2' - 4'. For use with legacy duct smoke detector models, DH100, DH200, DH400 and DH500 series detectors. UPC: 999999382831Also known as: BK-ST3, ST3 <
MSRP:

Was:

Now: $27.00

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System Sensor

System Sensor ST-5 Metal Sampling Tube, 4'-8' Duct Widths

JMAC# SYSTEM-SENSOR-ST-5

Metal sampling tube, for duct widths 4' - 8'. For use with legacy duct smoke detector models, DH100, DH200, DH400 and DH500 series detectors. UPC: 783863000812Also known as: BK-ST5, ST5 <
MSRP:

Was:

Now: $39.25

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System Sensor

System Sensor R-24T 4-gang relay with 4 Activation LEDs, DPDT

JMAC# SYSTEM-SENSOR-R-24T

The R-24T is a multi-voltage relay with terminal strip field wiring connections, mounting track and hardware. R-24T is a 4-gang 2 Form C (DPDT) relay with 4 red LEDs. UPC: 783863026331Also known as:...

MSRP:

Was:

Now: $122.00

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System Sensor

System Sensor R-24E, 4-gang Relay with 4 Activation LEDs, DPDT

JMAC# SYSTEM-SENSOR-R-24E

The R-24E is a multi-voltage relay with terminal strip field wiring connections, mounting track and hardware mounted in a steel enclosure. The closure has a removable front cover that provides easy...
MSRP:

Was:

Now: $171.00

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System Sensor

System Sensor R-20T Single Relay with Activation LED, DPDT

JMAC# SYSTEM-SENSOR-R-20T

The R-20T is a multi-voltage relay with terminal strip field wiring connections, mounting track and hardware. The R-20T is a single 2 Form C (DPDT) relay with a red LED. UPC: 783863026317Also known...

MSRP:

Was:

Now: $34.17

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System Sensor

System Sensor R-14T 4-gang Relay with 4 Activation LEDs, SPDT

JMAC# SYSTEM-SENSOR-R-14T

4-gang (SPDT) relay with 4 activation LEDsThe System Sensor R-14T is a multivoltage relay with terminal strip field wiring connections, mounting track, and hardware. The R-14T is a four-gang 1 FORM-C...

MSRP:

Was:

Now: $97.25

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System Sensor

System Sensor R-14E 4-gang Relay with 4 Activation LEDs, SPDT

JMAC# SYSTEM-SENSOR-R-14E

The R-14E is a multi-voltage relay with terminal strip field wiring connections, mounting track and hardware mounted in a steel enclosure. The closure has a removable front cover that provides easy...

MSRP:

Was:

Now: $148.00

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System Sensor

System Sensor R-10T Single Relay with Activation LED, SPDT

JMAC# SYSTEM-SENSOR-R-10T

The R-10T is a multi-voltage relay with terminal strip field wiring connections, mounting track and hardware. The R-10T is a single 1 FORM C (SPDT) relay with a red LED. UPC: 783863026300Also known...

MSRP:

Was:

Now: $31.00

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System Sensor

System Sensor PR-3 Epoxy Encapsulated Relay with Activation LED, SPDT, Additional Black and Red Wire

JMAC# SYSTEM-SENSOR-PR-3

Model PR-2 and PR-3 are epoxy encapsulated single pull double throw (SPDT) relays that are activated by 10 to 40 VDC. The PR-3 contains an additional black and red wire used for redundant power input...

MSRP:

Was:

Now: $25.75

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System Sensor

System Sensor ETX Metal Exhaust Tube, Up to 1ft Duct Width

JMAC# SYSTEM-SENSOR-ETX

The System Sensor ETX is a metal exhaust tube duct with a width up to 1ft UPC: 783863036873Also known as: BK-ETX Technical Specifications:
MSRP:

Was:

Now: $13.75

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Conventional Duct Smoke Detection

Duct smoke detectors sample the air moving through HVAC ductwork and, on alarm, shut down air handlers or close dampers to keep smoke from spreading through a building, the function NFPA 90A requires on larger air handling units. System Sensor's conventional InnovairFlex line covers 4-wire (D4120), watertight NEMA 4 (D4120W), and 2-wire (D2) photoelectric duct detectors, with a plug-in sensor head, operation in airflow from 100 to 4,000 feet per minute, and a pivoting housing that fits square and rectangular footprints on round or rectangular duct.

Around the detector sit the parts that make the installation work: metal sampling and exhaust tubes sized to duct width, multi-voltage relays that switch fans and dampers, remote test and reset stations, annunciators for systems without a panel, and a sensitivity reader for maintenance. Low-profile 2151 and 2D51 photoelectric heads handle special applications such as no-flow and low-flow air handling units under UL 268A.

Drill into duct detectors, accessories, multi-voltage relays, and special applications. Pair with System Sensor spot detectors, or browse the full System Sensor catalog. Contact our team for help sizing sampling tubes.