System Sensor 4WITAR-B i3 Series 4-Wire Isolated Photoelectric Smok...
System Sensor 4WITAR-B i3 Series 4-Wire Isolated Photoelectric Smok...
Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Get Free Pre-Sales Support Buy Design Hours ($175/hr)
Description

System Sensor 4WITAR-B i3 4-Wire Photoelectric Smoke Detector

Overview

The System Sensor 4WITAR-B i3 is a photoelectric smoke detector designed for integration into supervised fire detection loops. It operates on 24 VDC and communicates via 4-wire isolated topology, making it suitable for addressable fire alarm systems that require real-time detection feedback and system supervision.

Compatibility

This detector integrates with fire alarm control panels supporting 4-wire supervised loop architecture. The photoelectric sensing technology is effective for detecting slow-burning fires and smoke conditions common in commercial and institutional environments. Installers should verify compatibility with their specific control panel before deployment.

Specifications

  • Communication: 4-Wire Supervised Loop
  • Operating Voltage: 24 VDC
  • Detection Type: Photoelectric Smoke Sensing
Expert Analysis
Specifications
Product Type: Photoelectric Smoke Detector
Communication: 4-Wire Supervised Loop
Voltage: 24 VDC
Credential Type: NFC/13.56MHz
Type: Photoelectric Smoke Detector
Warranty: Manufacturer Warranty
Package Contents: d; Plug-in detector line, mounting base included
Analytics: Smoke Detection
Mount Type: Wall; Ceiling
Dimensions: (including base) 5.3 inches (127 mm) diameter; 2.0 inches (51 mm) height
Weight: 6.3 oz (178 g)
Mounting: 3½-inch octagonal back box
Operating System: Y2 Used to monitor the open position of an 1 in. to 12 in. 10 A @ 125/250 VAC; —
Q&A
Reviews
Product Video
Have Questions?

System Sensor 4WITAR-B i3 Series 4-Wire Isolated Photoelectric Smok...

$172.66
$99.99
Add to Cart

RELATED PRODUCTS

Save $52.86
System Sensor 4WTAR-B i3 Series 4-Wire Photoelectric Smoke Detector...
Add to Cart The item has been added

System Sensor 4WTAR-B

System Sensor 4WTAR-B i3 Series 4-Wire Photoelectric Smoke Detector...

4-wire addressable photoelectric smoke detector for monitored fire systems

  • 4-wire addressable protocol enables point ID and real-time status on compatible panels.
  • Photoelectric detection reliably identifies smoldering fires and obscuration-based smoke.
  • NFC 13.56 MHz credential support allows field configuration and testing without tools.
Usually Ships in 2-3 Weeks Free shipping over $499
$143.85 $90.99 Save $52.86
Add to Cart
The item has been added Add to quote
$143.85 $90.99 Save $52.86
Save $52.86 Add to cart Add to quote
Save $32.04
System Sensor 2WT-B i3 Series Photoelectric Smoke Detector with The...
Add to Cart The item has been added

System Sensor 2WT-B

System Sensor 2WT-B i3 Series Photoelectric Smoke Detector with The...

Networked photoelectric smoke detector with TCP/IP and NFC credentials

  • Stop-Drop 'N Lock head separates rough-in from trim-out, reducing install labor.
  • Built-in drift compensation and smoothing algorithms cut nuisance alarms in dusty spaces.
  • Mounts to 3½-inch octagonal, single-gang boxes, or drywall anchors on 35VDC systems.
Usually Ships in 2-3 Weeks Free shipping over $499
$95.03 $62.99 Save $32.04
Add to Cart
The item has been added Add to quote
$95.03 $62.99 Save $32.04
Save $32.04 Add to cart Add to quote
Save $41.91
System Sensor 2WTR-B i3 Series Photoelectric Smoke Detector (view 3)
Add to Cart The item has been added

System Sensor 2WTR-B

System Sensor 2WTR-B i3 Series Photoelectric Smoke Detector

Photoelectric smoke detector with TCP/IP networking and 35VDC operation

  • Photoelectric sensing reduces nuisance alarms from dust and cooking smoke.
  • TCP/IP communication integrates directly into existing Ethernet infrastructure.
  • 35VDC operation simplifies retrofits; mounts to standard 3½-inch octagonal back box.
Usually Ships in 2-3 Weeks Free shipping over $499
$123.90 $81.99 Save $41.91
Add to Cart
The item has been added Add to quote
$123.90 $81.99 Save $41.91
Save $41.91 Add to cart Add to quote
Save $35.31
System Sensor 2WTA-B i3 Series Photoelectric Smoke Detector with Th...
Add to Cart The item has been added

System Sensor 2WTA-B

System Sensor 2WTA-B i3 Series Photoelectric Smoke Detector with Th...

Dual smoke and heat detection on two-wire 35VDC loop

  • Photoelectric and thermal sensing on a single 35VDC two-wire loop simplifies wiring.
  • i3 drift compensation reduces false alarms in warehouses, offices, and mechanical rooms.
  • Stop-Drop 'N Lock plug-in base enables fast field swap-outs without rewiring terminals.
Usually Ships in 2-3 Weeks Free shipping over $499
$111.30 $75.99 Save $35.31
Add to Cart
The item has been added Add to quote
$111.30 $75.99 Save $35.31
Save $35.31 Add to cart Add to quote
Save $39.86
System Sensor 4WTA-B 4-Wire Photoelectric Smoke Detector (view 3)
Add to Cart The item has been added

System Sensor 4WTA-B

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

4-wire hardwired photoelectric smoke detector for 24 VDC fire systems

  • Runs on 24 VDC panel supply — no added converters or external power sources required.
  • NFC 13.56 MHz enables secure on-device commissioning without network or cloud access.
  • Mounts to a 3½-inch octagonal back box on wall or ceiling; 5.3 in. diameter footprint.
Usually Ships in 2-3 Weeks Free shipping over $499
$122.85 $82.99 Save $39.86
Add to Cart
The item has been added Add to quote
$122.85 $82.99 Save $39.86
Save $39.86 Add to cart Add to quote

Looking for more System Sensor products? Shop the full System Sensor catalog →

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources
!