Liftmaster 02109B NEMA 1 Key Switch with Best Cylinder
Two Position Key Control Station
Indoor Flush Mt. (NEMA 1)
Steel back box with architectural aluminum faceplate with BEST BRAND cylinder (construction core included)
OPEN/CLOSE spring return to center (OFF), key removable in center position only. Should only be used on operators wired for constant pressure to open and close (all LiftMaster industrial operators with type D control wiring).
WARNING: When used on most industrial operators, this control will not stop the door. Use another control that has a STOP button in conjunction with this control.