5-STAR-RATED ALL DOORS AND ROLLER SHUTTER DOOR COMPANY THINGS TO KNOW BEFORE YOU BUY

72 hour battery backup system. Small battery indicator light. Key switch for easy self testing or for periodic testing by Fire Marshalls. Electrical sensing edges are necessary for this egress door operator.These doors present entry Manage and security protection under normal use and will shut quickly while in the event of a fireplace, serving as a