System Sensor OSI-R-SS 02/12 Edwards Fire Alarm Bells are

Edwards Fire Alarm Bells are specially designed for fire alarm applications

in many cases exceeding industry standards

Wiring: Terminals accept #18–#12 AWG conductors

The FX-64 provides one Class A or Class B intelligent device loop that supports up to 64 device addresses

System Sensor OSI-R-SS 02/12 Edwards Fire Alarm Bells areOSI R SS is a 4 wire conventional reflector type linear optical beam smoke detector for use in fire alarm systems. The beam operates primarily on the principle of light obscuration using an infrared beam. Optical beam smoke detectors are uniquely suited to protecting buildings with large open areas with high ceilings such as a warehouse or atrium. The OSI R SS detector is a combined transmitter receiver unit that can be directly connected to a