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LiftMaster LM21-AFCB
Commercial Garage Door Opener
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Advanced Fire Control Release Device
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Internal Battery Backup system.
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For use with motorized doors incorporating a reversing electric safety edge.
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UL 864 Revision 9 compliant.
FEATURES
Commercial Fire Door Release Devices
Advance Fire Control Release Device
Works with a standard, commercial electromechanical or solid-state operators.
Powers up to four smoke detectors and two horn/strobes or speaker/strobes.
For use with motorized doors incorporating a reversing electric safety edge.
Programmable DIP switch delay setting.
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