An automatic sensor door closer is a device that automatically closes a door after it has been opened, using sensors to detect when the door is in use. These systems are commonly used in commercial buildings for convenience and safety.
Here's how they generally work:
1. Sensors: The door closer is equipped with sensors that detect motion or the presence of a person near the door. These can be infrared sensors, pressure sensors, or other types of motion detectors.
2. Activation: When the sensor detects that someone has opened the door, it triggers the door closer mechanism. This can be a hydraulic or pneumatic system that controls the speed and force with which the door closes.
3. Closing Mechanism: The door closer gently pulls the door back to the closed position after a set delay. This ensures that the door does not slam shut, which could be dangerous or damaging.
4. Adjustability: Many automatic door closers allow for adjustments in terms of closing speed and force, making them customizable to different door types and usage scenarios.
5. Power Source: Some models are powered by batteries, while others may be hardwired into the building's electrical system.
These devices are particularly useful in high-traffic areas, ensuring that doors remain closed to maintain climate control and security while providing easy access for people.
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