Swing-door operator

(Larger retail businesses prefer sliding door operators.)

The operator will heed hat requests only after it is able to do so safely for any other users in the area.

Low-energy operators are not required to have safety sensors, as the door is allowed to come in contact with a user, given that the kinetic energy of the moving door is limited by the reduced moving speed.

Historically, sensors have been simply floor mats that sense the weight of a user, one in the area immediately in front of the door (the approach side) and one in the area behind it (the swing side).

The swing side mat prevents the door from starting to open as long as some other person is detected in the swing area; once the door starts opening, this mat is ignored, as it will sense the user going through.

Typical swing door with a laser safety sensor
Disengaging, closer-based, push-mount, electro-mechanical operator. View from above. Shades of blue: standard door closer. Shades of red: opener gears. Gold: motor.