Hikvision Automatic Door Closer for 80 to 120kg Doors DS-K4DC105

Hikvision Automatic Door Closer for 80 to 120kg Doors Could protect the door frame and door body (steady closing) to ensure accurate and timely closing after the door is opened. Features Latching speed valve adjustable angle range is 0~15° Closing speed valve adjustable angle range is 15°~180° It is recommended that the door closing speed be slightly faster from 180° to 15°, and slow down from 15° to 0°, subject to the door fully closed. To prevent the door from closing too fast and causing the door leaf to collide with the door frame.