A door closer is a mechanical or automatic device that closes a door, in general after someone opens it, or after it was automatically opened.
Norton 6930-RF1 Standard-Duty Double Lever Arm PowerMatic Low Energy Door Operator w/ Radio Frequency ControlNorton's 6930-RF1 PowerMatic® is a “low energy” power door operator designed to automatically open and close doors with a lower energy opening force. Unlike high energy operators that require guide rails, safety mats and sensors, low energy operators only require signage. The PowerMatic is easy to adjust, available for push mounting and offers obstruction detection during both opening and closing cycles. This operator is ideal for executive offices, retirement homes, educational and assisted living facilities, office/warehouse corridor doors, etc. Learn More$2,728.13