System Sensor 2WT-BSystem Sensor 2WT B White 2 Wire Photoelectric i3 Series Smoke and Heat Detector with 135F Fixed Thermal Sensor System Sensor 2WT B White 2 Wire Photoelectric i3 Series Smoke and Heat Detector with 135F Fixed Thermal Sensor combines photoelectric smoke sensing with a 135F fixed thermal element for reliable multi criteria detection in conventional fire alarm systems. Designed for fast installation and simplified maintenance, it delivers intelligent
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System Sensor 2WT-B
White 2-Wire Photoelectric i3 Series Smoke and Heat Detector with 135F Fixed Thermal Sensor
System Sensor 2WT-B White 2-Wire Photoelectric i3 Series Smoke and Heat Detector with 135F Fixed Thermal Sensor combines photoelectric smoke sensing with a 135°F fixed thermal element for reliable multi-criteria detection in conventional fire alarm systems. Designed for fast installation and simplified maintenance, it delivers intelligent diagnostics and clear visual status indication in commercial and institutional environments.
Photoelectric smoke sensing combined with 135°F fixed temperature thermal detection for enhanced fire recognition
2-wire plug-in design with included mounting base for fast installation and reduced wiring complexity
Drift compensation and smoothing algorithms reduce nuisance alarms and improve long-term stability
Wide-angle dual-color LED indicators provide instant visual status (normal, alarm, trouble, maintenance)
Compatible with multiple back box types including single-gang, octagonal, and 4-square configurations