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System Sensor 4WTA-B Photoelectric i3 Series Smoke Detector
which flashes green in normal conditions and is solid red in alarm Relay programming is highly flexible and can be mapped to zone conditions Polling LED visible through the cover plate SEMS screws for easy wiring UL Listed
Siemens TRI-D (500-896226) Intelligent Interface Dual Input Module
which significantly reduces maintenance time and improves system uptime
STI-13020FR Universal Stopper
System Sensor D4120W Duct Smoke Detector 4-Wire Silent Knight System Sensor 4WTA-B Photoelectric i3System Sensor D4120W Watertight 4 Wire Photoelectric Duct Smoke Detector, 24VDC 120VAC Key Features NEMA Type 4 UL listed for non hazardous indoor and outdoor applications 4 Wire Photoelectric, integrated low flow technology UV Resistant, UL listed housing and cover materia
US$ 140.40
US$ 68.00
US$ 11.00
US$ 24.00
US$ 54.95
US$ 40.00