Protector System
An invisible light beam reverses the door automatically if obstructed when going down, and stops it if obstructed going up. The door can be stopped and locked at any height, for ventilation.
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Protector System |
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An invisible light beam reverses the door automatically if obstructed when going down, and stops it if obstructed going up. The door can be stopped and locked at any height, for ventilation. |