Manual Operation. A choice of simple push button, pull cord switches or key switches are
available.
Radar can trigger either the opening, closing or act as a safety feature protecting the door. Fitted normally above or to the side of the door openings, for detection of movement by traffic or pedestrians.
Induction Loops. The induction loop is cut into the floor in order to detect the metal content from wheeled traffic.
Air Lock. Sequenced operation between any two doors can be arranged in order that only door can be open whilst the other is closed. This typeof airlock offers the user the maximum control of the environmention.
Infra Red. Doors activated by transmitter,
which can either be hand-held or truck mounted. All systems are coded so that one transmitter can operate one selected door
and no other.
Photocells can trigger opening and closing of the doors but can act as a safety feature to detect wheeled and pedestrian traffic. When the beam is obstructed, the door will stay in the open position until obstruction is removed.
