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

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

The System Sensor 2W-B Two-Wire Photoelectric Smoke Detector is designed for reliable smoke detection and simple installation in residential, commercial, and light industrial applications. As part of the advanced System Sensor i3 Series, the 2W-B features intelligent technologies such as drift compensation, remote maintenance signaling, and a plug-in design that simplifies installation and servicing.

Compatible with most conventional two-wire fire alarm control panels, the 2W-B is an excellent choice for new installations, system upgrades, and replacement projects requiring dependable photoelectric smoke detection.

Key Features

• Two-wire photoelectric smoke detector

• Part of the System Sensor i3 Series

• Compatible with most conventional alarm control panels

• Plug-in detector with mounting base included

• Automatic drift compensation for long-term reliability

• Remote maintenance signaling capability

• Wide-angle dual-color LED status indicator

• Stop-Drop N Lock™ installation design

• Large wire entry port for easier wiring

• In-line terminals with SEMS screws

• Built-in test switch

• EZ Walk loop testing capability

• Ceiling or back box mounting options

• Genuine System Sensor smoke detector

Intelligent Detection and Maintenance

The System Sensor 2W-B continuously monitors its sensing chamber using automatic drift compensation, helping maintain proper sensitivity as dust and environmental conditions change. This reduces nuisance alarms while extending maintenance intervals.

When connected to compatible modules or fire alarm control panels, the detector can provide remote maintenance alerts, allowing maintenance personnel to quickly identify detectors requiring service.

For even faster inspections, the optional SENS-RDR wireless sensitivity reader measures detector sensitivity in percent-per-foot obscuration without removing the detector from service.

Easy Installation

The i3 Series plug-in design allows mounting bases to be installed and wired before detector heads are fitted, reducing installation time and simplifying future maintenance.

The patented Stop-Drop N Lock™ feature provides secure, one-step detector installation while minimizing handling during commissioning.

Compatible mounting options include:

• Direct ceiling mounting

• Octagonal back boxes

• Single-gang back boxes

• 4-inch square back boxes

LED Status Indicators

The dual-color, wide-angle LED provides clear visual indication of detector status.

• Green LED: Normal standby operation

• Red LED: Alarm condition

• Additional LED indications: Maintenance required or trouble condition

Advanced Testing Features

When used with the System Sensor 2W-MOD2 maintenance module or compatible fire alarm control panels, the EZ Walk loop test feature allows technicians to verify detector operation and wiring efficiently using the LED indicators on each detector.

Applications

The System Sensor 2W-B is ideal for smoke detection in:

• Commercial buildings

• Office buildings

• Schools and universities

• Retail stores

• Healthcare facilities

• Apartment buildings

• Residential properties

• Light industrial facilities

Specifications

• Manufacturer: System Sensor

• Model: 2W-B

• Product Series: i3 Series

• Product Type: Two-Wire Photoelectric Smoke Detector

• Detection Technology: Photoelectric

• Wiring: Two-wire

• Installation: Plug-in detector with mounting base included

• Mounting Options: Ceiling, octagonal back box, single-gang back box, or 4-inch square back box

• LED Indicator: Dual-color wide-angle LED

• Drift Compensation: Automatic

• Remote Maintenance Signaling: Yes

• Built-in Test Switch: Yes

• EZ Walk Testing: Supported

• Compatibility: Most conventional two-wire fire alarm control panels

Why Choose the System Sensor 2W-B?

The System Sensor 2W-B combines intelligent smoke detection with simple installation and reduced maintenance. Its automatic drift compensation, remote maintenance capabilities, plug-in design, and broad compatibility with conventional fire alarm systems make it a dependable and cost-effective solution for protecting residential, commercial, and light industrial properties.