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self-monitoring circuitry
ULC S529 Listed
The Model OP121 auto-sensitivity feature originates from its internal
They are intended for use with intelligent systems that have screw terminals for power (+ and -) and remote annunciator connections
Edwards EST M500MF Control Monitor Module HONEYWELL FSI-751 self-monitoring circuitryEdwards EST M500MF Control Monitor Module Monitor and control modules can be used to supervise and activate sounders, strobes, door closers, pull stations, waterflow switches, conventional smoke detectors, and more. Each module is rigorously designed and tested for electromagnetic compatibility and environmental reliability, in many cases exceeding industry standards.
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