System Sensor M500X Fault Isolator Module System Sensor M500R Notifier FDM-1A

Notifier FDM-1A

Johnson Controls J5351R Intelligent Addressable Heat Detector 135F Flashscan RoR

The Notifier FST-951R Series intelligent thermal detectors are designed for both performance and aesthetics and are direct replacements for the FST-851 Series

Johnson Controls J2351-IV Intelligent Photoelectric Smoke Detector

System Sensor M500X Fault Isolator Module System Sensor M500R Notifier FDM-1AThe M500X Fault Isolator modules enable part of the communications signaling line circuit to continue operating when a short circuit occurs. The System Sensor M500X Isolator Module is an automatic switch that opens when the line voltage drops below four volts. This module is rigorously designed and tested for electromagnetic compatibility and environmental reliability, in many cases exceeding industry standards.