D4120W

Name: Building Controls & Solutions D4120W - D4120W
Brand: Building Controls & Solutions
SKU: 48051280281840
Price: 364.89 USD
Availability: InStock

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$364.89

Purchase at Building Controls & Solutions

Color

Black

Quantity

Description

The InnovairFlex D4120W watertight 4-wire photoelectric duct smoke detector is UL listed as a watertight enclosure providing protection against falling dirt, rain, windblown dust, splashing and hose directed water. D4120W duct smoke detecto...

Delivery & Returns

Visit Building Controls & Solutions for full shipping details

Shipping calculated at checkout

Building Controls & Solutions

Product description loading

This is the product description text that will appear here.

Building Controls & Solutions

D4120

$256.86

17% off

The Fire Alarm Supplier

System Sensor D4120 Duct Smoke Detector

$211.50$253.80

System Sensor B114LPBT 24VAC/DC detector base mounted on a ceiling, designed for fire alarm systems and easy installation.

17% off

The Fire Alarm Supplier

System Sensor B114LPBT 24VAC/DC Detector Base

$103.55$124.26

Building Controls & Solutions

WD

$541.69

System Sensor B200S-IV plug-in detector base mounted on a ceiling, designed for easy installation of fire detection sensors.

17% off

The Fire Alarm Supplier

System Sensor B200S-IV Plug-In Detector Base

$79.05$94.86

System Sensor 2WT-B smoke and heat detector, 2-wire model, shown mounted on ceiling for fire safety and fire alarm systems.

17% off

The Fire Alarm Supplier

System Sensor 2WT-B i3 2-Wire Smoke and Heat Detector

(3)

$52.75$63.30

System Sensor DST1.5 metal sampling tube duct for air sampling, shown in a close-up image of the industrial duct component.

17% off

The Fire Alarm Supplier

System Sensor DST1.5 Metal Sampling Tube Duct

$12.05$14.46

Next Security Corp

2WT-B SYSTEM SENSOR

$43.06

Mircom MIX-2351RAP smoke detector mounted on ceiling, part of Mircom smoke alarm system for fire safety.

17% off

The Fire Alarm Supplier

Mircom MIX-2351RAP Smoke Sensor

$151.35$181.62

BDI Technology

Smoke Alarm Detector – Interconnect up to 24 Units TUV and AS Certified for Home Safety

$52.00

Silent Knight SK-DUCT-W intelligent photoelectric duct smoke detector installed in HVAC duct system for early smoke detection.

17% off

The Fire Alarm Supplier

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

$265.65$318.78

Can Lighting Inc.

System Sensor D4120A 4-Wire Photoelectric Low-Flow Duct Smoke Detector

(1)

$170.00

System Sensor RTS2 multi-signaling accessory for fire alarm systems, showing the device with connection ports and indicator lights.

17% off

The Fire Alarm Supplier

System Sensor RTS2 Multi-Signaling Accessory

$112.00$134.40

System Sensor WFD40N waterflow detector for fire alarm systems, 4-inch waterflow detection device in a clean, detailed view.

17% off

The Fire Alarm Supplier

System Sensor WFD40N Waterflow Detector 4 Inches

$259.65$311.58

System Sensor DST1 metal sampling tube duct for air sampling, cylindrical metal tube with connection fittings.

17% off

The Fire Alarm Supplier

System Sensor DST1 Metal Sampling Tube Duct

$10.15$12.18

Simplex 4098-9751 SSD in-duct sensor housing for duct detectors, showing the durable black plastic housing with mounting features.

17% off

The Fire Alarm Supplier

Simplex 4098-9751 SSD In-Duct Sensor Housing

$178.20$213.84

AlarmSystemStore.com

System Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor

$73.95

System Sensor DNR Intelligent Non-relay Photoelectric Low-flow Duct Smoke Detector

Bass United

System Sensor DNR Intelligent Non-relay Photoelectric Low-flow Duct Detector

$204.99

English cottage touches

Collected classics with country-house charm

System Sensor 2351B photoelectric smoke detector with round white design, mounted on ceiling for fire safety detection.

17% off

The Fire Alarm Supplier

System Sensor 2351B Photoelectric Smoke Detector

$188.80$226.56

Next Security Corp

WS4936 DSC

$100.05

Building Controls & Solutions

RTS2-AOS

$275.81

Dining table, elevated

Table lamps, serveware, and textured linens

Edwards SIGA-DDOS optical duct smoke detector mounted on a ventilation duct for air quality monitoring.

17% off

The Fire Alarm Supplier

Edwards SIGA-DDOS Optical Intelligent Duct Smoke Detector

$385.00$462.00

AlarmSystemStore.com

System Sensor 4W-B Four Wire Smoke Detector

$68.95

FastAlarm.com

System Sensor DNR Duct Smoke Detector

$156.00

System Sensor DNR duct detector mounted in HVAC duct for smoke detection and airflow monitoring

17% off

The Fire Alarm Supplier

System Sensor DNR Duct Detector

$199.20$239.04

AlarmSystemStore.com

System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor & Sounder

$89.95

38% off

Building Controls & Solutions

V-3000-8012

$184.22$294.76

Simplex 4098-9755 2-wire duct detector installed in HVAC duct system for airflow and fire detection.

17% off

The Fire Alarm Supplier

Simplex 4098-9755 2-Wire Duct Detector

$148.00$177.60

AlarmSystemStore.com

System Sensor 2WT-B Two Wire Smoke Detector With Built-In Heat Sensor

$67.95

9% off

Building Controls & Solutions

RT-3000-P

$615.45$677.00

Air Products and Controls APC SM-501-P duct smoke detector mounted on a ventilation duct, with wiring and sensor components visible.

17% off

The Fire Alarm Supplier

APC SM-501-P Duct Smoke Detector Photo

$176.25$211.50

System Sensor D4S Duct Smoke Detector installed in HVAC duct, designed for early smoke detection in ventilation systems.

17% off

The Fire Alarm Supplier

System Sensor D4S Duct Smoke Detector

$138.30$165.96

Gamewell-FCI ASD-PL2F addressable smoke detector, ceiling-mounted fire detection device with sensor and wiring components.

17% off

The Fire Alarm Supplier

Gamewell-FCI ASD-PL2F Addressable Smoke Detector

$259.90$311.88

Edwards SIGA-SD duct smoke detector mounted inside HVAC duct for fire detection and safety monitoring

17% off

The Fire Alarm Supplier

Edwards SIGA-SD Duct Smoke Detector

$221.45$265.74

Living room glow up

Chic lighting, side tables, and linen layers.

System Sensor DNRW duct smoke detector with visible detector head, designed for HVAC duct fire detection systems.

17% off

The Fire Alarm Supplier

System Sensor DNRW Duct Smoke Detector (Detector Head Sold Separately)

$230.30$276.36

System Sensor 2W-B photoelectric smoke detector, 2-wire model, showing the compact design and sensor opening for fire detection.

17% off

The Fire Alarm Supplier

System Sensor 2W-B i3 2-Wire Photoelectric Smoke Detector

(4)

$49.90$59.88

System Sensor 4WTR-B smoke detector and thermal sensor, 4-wire fire safety device with digital display and mounting bracket.

17% off

The Fire Alarm Supplier

System Sensor 4WTR-B Smoke Detector and Thermal Sensor 4-Wire

$74.15$88.98

System Sensor 2151 Smoke Detector, ceiling-mounted fire alarm device, designed for early smoke detection and safety.

17% off

The Fire Alarm Supplier

System Sensor 2151 Smoke Detector (Replaces 2451TH)

$62.35$74.82

AlarmSystemStore.com

System Sensor COSMOD4W 4-wire Smoke CO Detector Interface Module

$81.50

66% off

Midwest Supply

68W52 | 4 Wire Smoke Detector Sensor | Lennox

$236.05$687.00

System Sensor EOLR-1 end-of-line relay showing black and gray components with wiring terminals on a white background.

17% off

The Fire Alarm Supplier

System Sensor EOLR-1 End-Of-Line

$26.75$32.10

System Sensor D4120W duct smoke detector, 4-wire model, mounted in HVAC duct for air quality and smoke detection.

17% off

The Fire Alarm Supplier

System Sensor D4120W Duct Smoke Detector 4-Wire

$298.25$357.90

System Sensor 4W-B Smoke Detector with 4-wire connection showing the detector housing and wiring for fire safety.

17% off

The Fire Alarm Supplier

System Sensor 4W-B Smoke Detector 4-Wire

$57.60$69.12

67% off

Blackhawk Supply

D4120 | PhotoelectricSmoke24vac/dc120v | System Sensor

$179.79$540.00

Fire-Lite SD365R-IV replacement duct smoke detector in ivory, showing its compact design and mounting features.

17% off

The Fire Alarm Supplier

Fire-Lite SD365R-IV Replacement Duct Smoke Detector Ivory

$219.90$263.88

System Sensor DST5 metal sampling tube duct for air sampling, shown in a close-up view of the durable metal construction.

17% off

The Fire Alarm Supplier

System Sensor DST5 Metal Sampling Tube Duct

$20.25$24.30

Fire-Lite D365PL duct detector for fire detection systems, replacing the D355PL model, mounted in a ventilation duct.

17% off

The Fire Alarm Supplier

Fire-Lite D365PL Duct Detector (Replaces D355PL)

$266.75$320.10

System Sensor SS-PHOTO-R photoelectric smoke detector with remote test cap, mounted on ceiling for fire detection.

17% off

The Fire Alarm Supplier

System Sensor SS-PHOTO-R Remote Test Smoke Detector

$78.25$93.90

System Sensor SS-HEAT-ROR thermal detector showing a compact device with mounting base, used for heat detection in safety systems.

17% off

The Fire Alarm Supplier

System Sensor SS-HEAT-ROR Thermal Detector

$69.20$83.04

System Sensor 4WT-B photoelectric smoke detector with 4-wire connection, mounted on ceiling, for fire detection and safety.

17% off

The Fire Alarm Supplier

System Sensor 4WT-B Photoelectric Smoke Detector 4-Wire

$59.30$71.16

System Sensor 4WITAR-B smoke detector with thermal sensor, showing the device with mounting bracket and sensor components

17% off

The Fire Alarm Supplier

System Sensor 4WITAR-B Smoke Detector and Thermal Sensor

$87.95$105.54

System Sensor DCOIL duct accessory coil for HVAC systems, shown mounted inside a ventilation duct.

17% off

The Fire Alarm Supplier

System Sensor DCOIL Duct Accessory Coil

$30.15$36.18

Simplex 4098-9756 4-wire duct detector for HVAC systems, mounted in a duct, with wiring terminals visible.

17% off

The Fire Alarm Supplier

Simplex 4098-9756 4-Wire Duct Detector

$176.65$211.98

Next Security Corp

4W-B SYSTEM SENSOR

$40.18

System Sensor DH400OE-1 weatherproof housing for duct detectors, durable enclosure for industrial airflow monitoring systems.

17% off

The Fire Alarm Supplier

System Sensor DH400OE-1 Weatherproof Housing

$360.50$432.60

System Sensor D2 Innovairflex 2-Wire Conventional Photo Duct Detector installed in HVAC system for smoke detection.

17% off

The Fire Alarm Supplier

System Sensor D2 Innovairflex 2-Wire Conventional Photo Duct Detector

$212.50$255.00

Simplex 4098-9750 SSD in-duct sensor for duct detectors, mounted in HVAC duct for airflow monitoring.

17% off

The Fire Alarm Supplier

Simplex 4098-9750 SSD In-Duct Sensor

$161.35$193.62

3% off

siterwell.us

SITERWELL GS562A Hardwired Interconnected Smoke Alarm(Detector) with Test/Silence Button | 9V Backup Battery | UL217 Listed

(7)

$277.18$285.99

System Sensor OSI-R-SS reflected type beam smoke detector with 4-wire connection, mounted on ceiling for fire detection.

17% off

The Fire Alarm Supplier

System Sensor OSI-R-SS Reflected Type Beam Smoke Detector, 4-Wire

$939.65$1,127.58

AlarmSystemStore.com

System Sensor 2W-B Two Wire Smoke Detector

$61.95

Building Controls & Solutions

RTS151KEY

$117.72

System Sensor 2WT-B i3 2-wire smoke and heat detector, mounted on ceiling, with sensor and wiring visible.

FastAlarm.com

System Sensor 2WT-B i3 2-Wire Smoke + Heat Detector

$47.00

Fire and Safety Plus

Resideo 5800SMOKEV Wireless Smoke and Heat Detector, Round, White

$92.00

D4120W

Delivery & Returns

Building Controls & Solutions

You might also like

D4120

System Sensor D4120 Duct Smoke Detector

System Sensor B114LPBT 24VAC/DC Detector Base

WD

System Sensor B200S-IV Plug-In Detector Base

System Sensor 2WT-B i3 2-Wire Smoke and Heat Detector

System Sensor DST1.5 Metal Sampling Tube Duct

2WT-B SYSTEM SENSOR

Mircom MIX-2351RAP Smoke Sensor

Smoke Alarm Detector – Interconnect up to 24 Units TUV and AS Certified for Home Safety

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

System Sensor D4120A 4-Wire Photoelectric Low-Flow Duct Smoke Detector

System Sensor RTS2 Multi-Signaling Accessory

System Sensor WFD40N Waterflow Detector 4 Inches

System Sensor DST1 Metal Sampling Tube Duct

Simplex 4098-9751 SSD In-Duct Sensor Housing

System Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor

System Sensor DNR Intelligent Non-relay Photoelectric Low-flow Duct Detector

System Sensor 2351B Photoelectric Smoke Detector

WS4936 DSC

RTS2-AOS

Edwards SIGA-DDOS Optical Intelligent Duct Smoke Detector

System Sensor 4W-B Four Wire Smoke Detector

System Sensor DNR Duct Smoke Detector

System Sensor DNR Duct Detector

System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor & Sounder

V-3000-8012

Simplex 4098-9755 2-Wire Duct Detector

System Sensor 2WT-B Two Wire Smoke Detector With Built-In Heat Sensor

RT-3000-P

APC SM-501-P Duct Smoke Detector Photo

System Sensor D4S Duct Smoke Detector

Gamewell-FCI ASD-PL2F Addressable Smoke Detector

Edwards SIGA-SD Duct Smoke Detector

System Sensor DNRW Duct Smoke Detector (Detector Head Sold Separately)

System Sensor 2W-B i3 2-Wire Photoelectric Smoke Detector

System Sensor 4WTR-B Smoke Detector and Thermal Sensor 4-Wire

System Sensor 2151 Smoke Detector (Replaces 2451TH)

System Sensor COSMOD4W 4-wire Smoke CO Detector Interface Module

68W52 | 4 Wire Smoke Detector Sensor | Lennox

System Sensor EOLR-1 End-Of-Line

System Sensor D4120W Duct Smoke Detector 4-Wire

System Sensor 4W-B Smoke Detector 4-Wire

D4120 | PhotoelectricSmoke24vac/dc120v | System Sensor

Fire-Lite SD365R-IV Replacement Duct Smoke Detector Ivory

System Sensor DST5 Metal Sampling Tube Duct

Fire-Lite D365PL Duct Detector (Replaces D355PL)

System Sensor SS-PHOTO-R Remote Test Smoke Detector

System Sensor SS-HEAT-ROR Thermal Detector

System Sensor 4WT-B Photoelectric Smoke Detector 4-Wire

System Sensor 4WITAR-B Smoke Detector and Thermal Sensor

System Sensor DCOIL Duct Accessory Coil

Simplex 4098-9756 4-Wire Duct Detector

4W-B SYSTEM SENSOR

System Sensor DH400OE-1 Weatherproof Housing

System Sensor D2 Innovairflex 2-Wire Conventional Photo Duct Detector

Simplex 4098-9750 SSD In-Duct Sensor

SITERWELL GS562A Hardwired Interconnected Smoke Alarm(Detector) with Test/Silence Button | 9V Backup Battery | UL217 Listed

System Sensor OSI-R-SS Reflected Type Beam Smoke Detector, 4-Wire

System Sensor 2W-B Two Wire Smoke Detector

RTS151KEY

System Sensor 2WT-B i3 2-Wire Smoke + Heat Detector

Resideo 5800SMOKEV Wireless Smoke and Heat Detector, Round, White

Delivery & Returns

Building Controls & Solutions

You might also like

D4120

System Sensor D4120 Duct Smoke Detector

System Sensor B114LPBT 24VAC/DC Detector Base

WD

System Sensor B200S-IV Plug-In Detector Base

System Sensor 2WT-B i3 2-Wire Smoke and Heat Detector

System Sensor DST1.5 Metal Sampling Tube Duct

2WT-B SYSTEM SENSOR

Mircom MIX-2351RAP Smoke Sensor

Smoke Alarm Detector – Interconnect up to 24 Units TUV and AS Certified for Home Safety