System Sensor 2WT-B Combination Smoke/Thermal DetectorThe System Sensor 2WT B is a 2 Wire Plug in combination Photoelectric Smoke Detector and Thermal Sensor. Thermal Sensor: 135F (57. 2C) fixed. Base (included) mounts to octagonal and single gang back boxes, 4 square back boxes, or direct to ceiling. The System Sensor 2WT B belongs to the i3 series of intelligent smoke detectors. NOTE: Replaces ESL 521BXT.
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System Sensor 2WT-B Combination Smoke/Thermal Detector