System Sensor 5623: Fixed Temperature Heat Detector Dual Circuit 135°F

System Sensor 5623

System Sensor 5623 - Fixed Temperature Heat Detector 135°F

System Sensor 5624 Dual-Circuit Heat Detector 135°F (57°C) Fixed-Temperature

System Sensor 5623 - Fixed Temperature Heat Detector 135°F

System Sensor - 5600 Series - Heat Detector - 135°F Fixed Temp - Model 5603

System Sensor 5623 Heat Detector

System Sensor 5600 Series Heat Detector Model 5601P