Description
System Sensor 2WT-B Photo Smoke Detector
The System Sensor 2WT-B Photo Smoke Detector is a two-wire, photoelectric smoke detector engineered for exceptional performance in residential and commercial fire alarm systems. Designed to quickly detect slow smoldering fires, it provides early warning and helps ensure occupant safety in a wide range of building environments.
Reliable Detection with Advanced Photoelectric Technology
The 2WT-B uses photoelectric sensing technology, which is especially effective at identifying the larger smoke particles typically produced by smoldering fires. Unlike ionization detectors, this unit offers reduced false alarms from cooking smoke or steam, making it ideal for installation in apartments, dormitories, hotels, and office spaces. It’s also compatible with a wide array of UL-listed fire alarm control panels.
Key Features of the System Sensor 2WT-B
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Two-wire connection for easy installation and maintenance
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Photoelectric sensing chamber optimized for detecting smoldering fires
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Built-in drift compensation to maintain accuracy as the unit ages
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Dual LEDs for 360° visual indication of alarm or standby conditions
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Remote test capability using compatible control panels or test modules
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Tamper-resistant design with secure mounting
Simplified Maintenance and Compatibility
The System Sensor 2WT-B includes built-in maintenance alerts that notify the control panel when the detector requires cleaning. This feature helps reduce service costs and ensures the system remains in peak condition. Additionally, its universal base design simplifies replacement and upgrades without rewiring.
Applications and Installation
Ideal for use in a wide variety of environments, the 2WT-B can be installed in residential buildings, commercial offices, educational institutions, and more. Its compatibility with multiple panel brands and zones makes it a flexible choice for both new installations and retrofits.
The System Sensor 2WT-B Photo Smoke Detector combines fast, reliable smoke detection with simplified maintenance and installation. Its photoelectric sensor reduces false alarms while ensuring early response to real fire threats. Whether for residential or light commercial use, the 2WT-B provides dependable protection and peace of mind.





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