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.
The 4811-STD AUTO EQUALIZER is LCN’s pneumatically powered MULTI-DOOR solution. This lowenergy automatic operator provides easy access for people with disabilities, the elderly, or the frail. Designed primarily for manual opening applications that occasionally require automatic opening. Learn More$1,032.11