An automatic door closer (more often called a "door opener") opens the door itself, typically under the control of a push button, motion detector or other device, and then closes it as well, typically employing a motion or proximity detector to determine when it is safe to close the door.
Norton 7245MPDO Master Unit Connected Free Swing Arm Electromechanical Closer/Holder Releasing DeviceThe 7245MPDO Electromechanical Closer/Holders combine the functions of an electromechanical door holder with the 7700 series door closer. Selective Hold Open (Standard): The door will hold open at any degree of opening beyond a pre-set hold open point, up to 175°, with a maximum allowable door opening of 180° (the exception is series 7250 which opens to 110º). Factory set at 80°, but is adjustable to virtually any degree of door opening desired. The connected free swing arm assembly provides the convenient automatic closing fire door protection for health care facilities or other locations where it is desired to neutralize the effort required to open or close a door. With no spring force on the door during the normal operation, patients, the handicapped and/or staff find the door easy to open, close or leave ajar. Learn More$1,260.00