banner-image
banner-image
banner-image
banner-image
Duct Smoke detector, 24 VDC, Photoelectric, 2-Wire, System Sensor #D2

Duct Smoke detector, 24 VDC, Photoelectric, 2-Wire, System Sensor #D2

$200.00$100.00

Telaire Carrier HK50ZT001 Photoelectric Duct Smoke Sensor SENSOR MODULE - 4 Wire

Telaire Carrier HK50ZT001 Photoelectric Duct Smoke Sensor SENSOR MODULE - 4 Wire

$111.14$55.57

TELAIRE SuperDuct Photoelectric Duct Smoke Sensor

TELAIRE SuperDuct Photoelectric Duct Smoke Sensor

$100.00$50.00

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$35.00$17.50

Photoelectric Duct Smoke Sensor SD-SJ

Photoelectric Duct Smoke Sensor SD-SJ

$60.00$30.00

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector, New

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector, New

$99.99$49.99

System Sensor D4120 4 Wire Photoelectric Duct SmokeDetector

System Sensor D4120 4 Wire Photoelectric Duct SmokeDetector

$35.00$17.50

SYSTEM SENSOR DUCTSD 4 WIRE PHOTOELECTRIC 24V AC/DC OR 120VAC DUCT SMOKE DETECT.

SYSTEM SENSOR DUCTSD 4 WIRE PHOTOELECTRIC 24V AC/DC OR 120VAC DUCT SMOKE DETECT.

$119.99$59.99

Innovair System Sensor D2 2-Wire Photoelectric Duct Smoke Detector

Innovair System Sensor D2 2-Wire Photoelectric Duct Smoke Detector

$95.00$47.50

Innovair System Sensor D2 2-Wire Photoelectric Duct Smoke Detector No Box

Innovair System Sensor D2 2-Wire Photoelectric Duct Smoke Detector No Box

$67.95$33.98

SYSTEM SENSOR D4120 4 WIRE PHOTOELECTRIC 24V AC/DC OR 120VAC DUCT SMOKE DETECTOR

SYSTEM SENSOR D4120 4 WIRE PHOTOELECTRIC 24V AC/DC OR 120VAC DUCT SMOKE DETECTOR

$119.99$59.99

System Sensor D4120 Duct Smoke Detector, Photoelectric, Universal, Air Velocity

System Sensor D4120 Duct Smoke Detector, Photoelectric, Universal, Air Velocity

$151.99$76.00

Silent Knight SK-DUCT Intelligent Photoelectric Duct Smoke Detector [CTOKT]

Silent Knight SK-DUCT Intelligent Photoelectric Duct Smoke Detector [CTOKT]

$265.97$132.99

Edwards EST (SIGA-SD) Photoelectric Duct Smoke Detector - Signature Series

Edwards EST (SIGA-SD) Photoelectric Duct Smoke Detector - Signature Series

$120.00$60.00

NEW Air Products and Controls - SL-2000-P Photoelectric Duct Smoke Detector

NEW Air Products and Controls - SL-2000-P Photoelectric Duct Smoke Detector

$125.00$62.50

System Sensor DNRA Intelligent Photoelectric Duct Smoke detector NEW IN BOX

System Sensor DNRA Intelligent Photoelectric Duct Smoke detector NEW IN BOX

$120.00$60.00

System Sensor D4120 4 Wire Photoelectric Duct Smoke PLUS an RTS151 Module

System Sensor D4120 4 Wire Photoelectric Duct Smoke PLUS an RTS151 Module

$99.00$49.50

System Sensor DNRA Intelligent Photoelectric Duct Smoke detector ⭐NEW IN BOX⭐

System Sensor DNRA Intelligent Photoelectric Duct Smoke detector ⭐NEW IN BOX⭐

$99.00$49.50

Edwards GSA-SDPCB Replacement Photoelectric Duct Smoke Detector

Edwards GSA-SDPCB Replacement Photoelectric Duct Smoke Detector

$85.00$42.50

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$150.00$75.00

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector READ

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector READ

$59.99$30.00

Fike 63-1057 Duct Sensor Head Intelligent Photoelectric Smoke Detector

Fike 63-1057 Duct Sensor Head Intelligent Photoelectric Smoke Detector

$49.95$24.98

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector. NIB

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector. NIB

$110.00$55.00

System Sensor 2551HR Photoelectric Smoke Detector for Duct DH500 Honeywell

System Sensor 2551HR Photoelectric Smoke Detector for Duct DH500 Honeywell

$69.95$34.98

*Telaire TSD-SJ-C01 Carrier HK50ZT001 Photoelectric Duct Smoke Sensor 4Wire RJ45

*Telaire TSD-SJ-C01 Carrier HK50ZT001 Photoelectric Duct Smoke Sensor 4Wire RJ45

$99.99$49.99

Edwards EST SIGA-SD Photoelectric Duct Smoke Detector

Edwards EST SIGA-SD Photoelectric Duct Smoke Detector

$99.99$49.99

System Sensor DNRA Intelligent Photoelectric Duct Smoke Detector Housing *NEW*

System Sensor DNRA Intelligent Photoelectric Duct Smoke Detector Housing *NEW*

$124.88$62.44

Hochiki ALG-DH Analog Photoelectric Duct Smoke Sensor

Hochiki ALG-DH Analog Photoelectric Duct Smoke Sensor

$40.00$20.00

🔥New🔥 System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

🔥New🔥 System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$129.99$65.00

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$169.55$84.78

System Sensor DNRA Intelligent Photoelectric Duct Smoke Detector

System Sensor DNRA Intelligent Photoelectric Duct Smoke Detector

$133.99$67.00

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$430.00$215.00

FIKE 63-1057 INTELLIGENT PHOTOELECTRIC DUCT SMOKE DETECTOR FULLY FUNCTIONAL

FIKE 63-1057 INTELLIGENT PHOTOELECTRIC DUCT SMOKE DETECTOR FULLY FUNCTIONAL

$19.99$9.99

System Sensor D4120 InnovairFlex 4-Wire Photoelectric Duct Smoke Detector 24VAC/

System Sensor D4120 InnovairFlex 4-Wire Photoelectric Duct Smoke Detector 24VAC/

$161.87$80.94

Kidde FX-PDD Photoelectric Duct Smoke Sensor

Kidde FX-PDD Photoelectric Duct Smoke Sensor

$230.00$115.00

Edwards EST SIGA-SD Photoelectric Duct Smoke Detector

Edwards EST SIGA-SD Photoelectric Duct Smoke Detector

$121.99$60.99

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$129.00$64.50

Innovair Notifier FSD-751RPL Intelligent Photoelectric Duct Smoke Detector

Innovair Notifier FSD-751RPL Intelligent Photoelectric Duct Smoke Detector

$359.99$180.00

Simplex 4098-9756 Duct Detector - Same Day Shipping (SEALED)

Simplex 4098-9756 Duct Detector - Same Day Shipping (SEALED)

$144.20$72.10

System Sensor D4120 Duct Smoke Detector, Photoelectric, Universal, Air Velocity

System Sensor D4120 Duct Smoke Detector, Photoelectric, Universal, Air Velocity

$149.99$75.00

Innovair System Sensor D2 2-Wire Photoelectric Duct Smoke Detector

Innovair System Sensor D2 2-Wire Photoelectric Duct Smoke Detector

$71.99$35.99

EDWARDS SIGA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR

EDWARDS SIGA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR

$39.99$20.00

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$125.00$62.50

TELAIRE SuperDuct Photoelectric Duct Smoke Sensor

TELAIRE SuperDuct Photoelectric Duct Smoke Sensor

$100.00$50.00

System Sensor D4120W Watertight 4-Wire Photoelectric Duct Smoke Detector 24VDC/1

System Sensor D4120W Watertight 4-Wire Photoelectric Duct Smoke Detector 24VDC/1

$206.76$103.38

SYSTEM SENSOR D4120W WATERTIGHT 4 WIRE PHOTOELECTRIC DUCT SMOKE DETECTOR 2 AVAIL

SYSTEM SENSOR D4120W WATERTIGHT 4 WIRE PHOTOELECTRIC DUCT SMOKE DETECTOR 2 AVAIL

$179.99$90.00

Air Products and Controls SM-501-P 2 Pk Photoelectric Duct Smoke Detector

Air Products and Controls SM-501-P 2 Pk Photoelectric Duct Smoke Detector

$99.99$49.99

Telaire Carrier HK50ZT001 Photoelectric Duct Smoke Sensor SENSOR MODULE - 4 Wire

Telaire Carrier HK50ZT001 Photoelectric Duct Smoke Sensor SENSOR MODULE - 4 Wire

$89.99$44.99

System Sensor DNRA Intelligent Photoelectric Duct Smoke detector NEW IN BOX

System Sensor DNRA Intelligent Photoelectric Duct Smoke detector NEW IN BOX

$121.66$60.83

EDWARDS SIGA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR BRAND NEW -FREE SHIPPING

EDWARDS SIGA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR BRAND NEW -FREE SHIPPING

$125.00$62.50

System Sensor D4120 Duct Smoke Detector, Photoelectric, Universal, Air Velocity

System Sensor D4120 Duct Smoke Detector, Photoelectric, Universal, Air Velocity

$139.95$69.97

Kidde EST VIGILANT GSA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR

Kidde EST VIGILANT GSA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR

$55.00$27.50

Air Products SL-2000-P Duct Smoke Detector

Air Products SL-2000-P Duct Smoke Detector

$49.00$24.50

Edwards EST SIGA-SD Photoelectric Duct Smoke Detector

Edwards EST SIGA-SD Photoelectric Duct Smoke Detector

$59.99$30.00

SIGA-SD Photoelectric Duct Smoke Detector-Signature

SIGA-SD Photoelectric Duct Smoke Detector-Signature

$95.00$47.50

System Sensor Photoelectric, Duct Smoke Detector: Universal, 2 1/2

System Sensor Photoelectric, Duct Smoke Detector: Universal, 2 1/2

$179.99$90.00

Air Products and Controls SL-2000-P Photoelectric Duct Smoke Detector 4-Wire

Air Products and Controls SL-2000-P Photoelectric Duct Smoke Detector 4-Wire

$92.88$46.44

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$75.00$37.50

Duct Detector, Addressable, W/ Photoelectric Head, Silent Knight #SK-DUCT-W

Duct Detector, Addressable, W/ Photoelectric Head, Silent Knight #SK-DUCT-W

$264.50$132.25

NEW EST EDWARDS SIGA-SD | PHOTOELECTRIC DUCT SMOKE DETECTOR NIB

NEW EST EDWARDS SIGA-SD | PHOTOELECTRIC DUCT SMOKE DETECTOR NIB

$100.00$50.00

Bosch D300A Photoelectric Duct Mount Smoke Detector 24V/115V

Bosch D300A Photoelectric Duct Mount Smoke Detector 24V/115V

$64.99$32.49

UNTESTED TELAIRE HK50ZT001 PHOTOELECTRIC DUCT SMOKE SENSOR 4 WIRE RJ45 AS IS

UNTESTED TELAIRE HK50ZT001 PHOTOELECTRIC DUCT SMOKE SENSOR 4 WIRE RJ45 AS IS

$39.99$20.00

VIGILANT GSA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR NEW

VIGILANT GSA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR NEW

$169.00$84.50

Fire-Lite D365PL Photoelectric Duct Smoke Detector

Fire-Lite D365PL Photoelectric Duct Smoke Detector

$140.00$70.00

SYSTEM SENSOR DNRA - INTELLIGENT PHOTOELECTRIC DUCT SMOKE DETECTOR HOUSING - NEW

SYSTEM SENSOR DNRA - INTELLIGENT PHOTOELECTRIC DUCT SMOKE DETECTOR HOUSING - NEW

$76.96$38.48

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$140.00$70.00

EST Edwards SIGA-SD Photoelectric Duct Smoke Detector New in Box

EST Edwards SIGA-SD Photoelectric Duct Smoke Detector New in Box

$100.00$50.00

*Telaire TSD-SJ-C01 Carrier HK50ZT001 Photoelectric Duct Smoke Sensor 4Wire RJ45

*Telaire TSD-SJ-C01 Carrier HK50ZT001 Photoelectric Duct Smoke Sensor 4Wire RJ45

$99.95$49.98

Edwards EST SIGA-SD Photoelectric Duct Smoke Detector

Edwards EST SIGA-SD Photoelectric Duct Smoke Detector

$39.99$20.00

Duct Smoke detector, 24 VDC, Photoelectric, 2-Wire, System Sensor #D2

Duct Smoke detector, 24 VDC, Photoelectric, 2-Wire, System Sensor #D2

$234.50$117.25

Silent Knight IDP-PHOTO-W Photoelectric Smoke Detector

Silent Knight IDP-PHOTO-W Photoelectric Smoke Detector

$66.00$33.00

System Sensor DNR Intelligent Photoelectric Duct Detector No screws

System Sensor DNR Intelligent Photoelectric Duct Detector No screws

$84.99$42.49

Simplex 4098-9756 Duct Sensor Housing 4-wire

Simplex 4098-9756 Duct Sensor Housing 4-wire

$208.00$104.00

HONEYWELL TC806A1037 PHOTOELECTRIC DUCT DETECTOR HEAD

HONEYWELL TC806A1037 PHOTOELECTRIC DUCT DETECTOR HEAD

$99.95$49.98

Silent Knight SK-DUCT-W Intelligent Photoelectric Duct Smoke Detector NEW!!!

Silent Knight SK-DUCT-W Intelligent Photoelectric Duct Smoke Detector NEW!!!

$124.99$62.49

Air Products And Controls (SL-2000 Series) Conventional Duct Smoke Detector

Air Products And Controls (SL-2000 Series) Conventional Duct Smoke Detector

$40.00$20.00

System Sensor 4-Wire Photoelectric Low-Flow Duct Smoke Detector D4120

System Sensor 4-Wire Photoelectric Low-Flow Duct Smoke Detector D4120

$141.99$71.00

Edwards Signaling Photoelectric Duct Smoke Detector Subassembly 4-Wire RJ45

Edwards Signaling Photoelectric Duct Smoke Detector Subassembly 4-Wire RJ45

$148.50$74.25

NEW Air Products and Controls - SL-2000-P Photoelectric Duct Smoke Detector

NEW Air Products and Controls - SL-2000-P Photoelectric Duct Smoke Detector

$85.00$42.50

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$149.99$75.00

Fike 63-1056 Intelligent Photoelectric Duct Smoke Detector Housing 783863024740

Fike 63-1056 Intelligent Photoelectric Duct Smoke Detector Housing 783863024740

$119.95$59.98

System Sensor D2 2-Wire Photoelectric Duct Smoke Detector

System Sensor D2 2-Wire Photoelectric Duct Smoke Detector

$160.00$80.00

EST Cat. No. 6266B-001 PHOTOELECTRIC DUCT DETECTOR 24V DC - NEW OPEN BOX

EST Cat. No. 6266B-001 PHOTOELECTRIC DUCT DETECTOR 24V DC - NEW OPEN BOX

$199.00$99.50

Duct Detector, Addressable, W/ Photoelectric Head, Silent Knight #SK-DUCT-W

Duct Detector, Addressable, W/ Photoelectric Head, Silent Knight #SK-DUCT-W

$249.99$125.00

Silent Knight SK-DUCT Photoelectric Duct Smoke Detector

Silent Knight SK-DUCT Photoelectric Duct Smoke Detector

$150.00$75.00

SYSTEM SENSOR INNOVAIR DH200RP PHOTOELECTRIC RELAY DUCT SMOKE DETECTOR

SYSTEM SENSOR INNOVAIR DH200RP PHOTOELECTRIC RELAY DUCT SMOKE DETECTOR

$69.95$34.98

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$150.00$75.00

SYSTEM SENSOR INNOVAIR FLEX DNRA Intelligent Photoelectric Duct Smoke Detector

SYSTEM SENSOR INNOVAIR FLEX DNRA Intelligent Photoelectric Duct Smoke Detector

$169.99$85.00

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector OEM Honeywell NEW

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector OEM Honeywell NEW

$119.00$59.50

EDWARDS TELAIRE TSD-ST FOUR WIRE PHOTOELECTRIC DUCT SMOKE DETECTOR

EDWARDS TELAIRE TSD-ST FOUR WIRE PHOTOELECTRIC DUCT SMOKE DETECTOR

$49.95$24.98

VIGILANT GSA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR

VIGILANT GSA-SD PHOTOELECTRIC DUCT SMOKE DETECTOR

$87.99$43.99

Air Products and Controls APC SL-2000-P Duct Smoke Detector - USED HVAC Fire

Air Products and Controls APC SL-2000-P Duct Smoke Detector - USED HVAC Fire

$19.99$9.99

Simplex 4098-9755 Duct Sensor Housing

Simplex 4098-9755 Duct Sensor Housing

$161.00$80.50

Fire-Lite D355PL Intelligent Non-relay Duct Smoke Detector

Fire-Lite D355PL Intelligent Non-relay Duct Smoke Detector

$225.00$112.50

🔥SIGA-SD EDWARDS EST PHOTOELECTRIC DUCT SMOKE DETECTOR

🔥SIGA-SD EDWARDS EST PHOTOELECTRIC DUCT SMOKE DETECTOR

$151.99$76.00

INNOVAIR DH200RPL PHOTOELECTRIC DUCT SMOKE DETECTOR *Read Description*

INNOVAIR DH200RPL PHOTOELECTRIC DUCT SMOKE DETECTOR *Read Description*

$92.15$46.08

FCI ASD-P Duct Photoelectric Smoke Detector Gamewell ASDP Remote Test Capable

FCI ASD-P Duct Photoelectric Smoke Detector Gamewell ASDP Remote Test Capable

$59.00$29.50

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector

$115.00$57.50

2x New Air Products Controls SL-2000-P Photoelectric Duct Smoke Detector

2x New Air Products Controls SL-2000-P Photoelectric Duct Smoke Detector

$220.00$110.00

APC SL-2000-P Photoelectric Duct Smoke Detector

APC SL-2000-P Photoelectric Duct Smoke Detector

$135.00$67.50