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

Overview

The System Sensor 4WTAR-B is a 4-wire addressable photoelectric smoke detector designed for monitored fire detection systems. Operating at 35VDC, this device integrates into addressable fire alarm networks, providing point identification and real-time status reporting. The photoelectric detection method is effective for detecting smoldering fires and obscuration-based smoke conditions.

Compatibility

The 4WTAR-B communicates via 4-wire addressable protocol, making it compatible with System Sensor control panels and third-party addressable fire systems supporting this standard. NFC credential functionality (13.56MHz) enables field configuration and testing. Installation requires 4-wire connection (power, ground, and addressable signal lines) to the main control panel.

Technical Specifications

Communication: 4-Wire Addressable

Operating Voltage: 35VDC

Credential Type: NFC/13.56MHz

Detection Type: Photoelectric

System Sensor 4W-B Photoelectric Smoke Detector

4-wire photoelectric smoke detector for hardwired fire alarm systems

4-wire circuit separates power and signal, reducing false alarms in electrically noisy spaces.
35VDC operation matches standard FACP output—no external power conversion or added components.
Mounts to a 3½-inch octagonal back box; fits wall or ceiling in 0°C–49°C environments.

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System Sensor

SKU: 4WTR-B

System Sensor 4WTR-B 4-Wire Addressable Photoelectric Smoke Detector

4-wire addressable photoelectric smoke detector for networked fire systems

Addressable 4-wire loop gives the control panel exact detector-level alarm location.
Photoelectric light-scattering detects smoldering smoke early on 24VDC loop power.
NFC 13.56 MHz enables credential-based configuration without removing the detector.

$130.20 $84.99 Save $45.21

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System Sensor

SKU: 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.

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System Sensor

SKU: 4WT-B

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

4-wire addressable photoelectric smoke detector with NFC programming

Addressable 4-wire architecture lets each detector carry a unique address, cutting zone wiring runs.
35VDC operation aligns with standard fire control panels, simplifying power distribution planning.
Photoelectric sensing reduces false alarms in kitchens and parking structures vs. ionization types.

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System Sensor

SKU: 2W-B

System Sensor 2W-B Photoelectric Smoke Detector 24VDC

24VDC photoelectric smoke detector with 2-wire supervised circuit

2-wire supervised circuit cuts cable runs and conduit costs on large floor plates.
24 VDC operation integrates directly into standard building fire alarm power buses.
Photoelectric sensing targets smoldering fires, reducing false alarms in kitchens and mechanical rooms.

$86.63 $52.99 Save $33.64

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