LiftMaster Option Card Red/Green Kit | LIF-RDGRNCARD 1099 Additional counterweights are required if

Additional counterweights are required if extra materials are attached to the arm

including Aiphone intercoms and access control equipment

transfer box

All necessary mounting hardware for a post mounted installation

LiftMaster Option Card Red/Green Kit | LIF-RDGRNCARD 1099 Additional counterweights are required ifLiftMaster Option Card Red Green Kit LIF RDGRNCARD Warning Device Option Board with Red Green Light Box For use only with L2 and L3 Logic Control Boards. Signals if the door is moving or stationary. Other 120V or 24V signal devices can be attached. Signals a red prior to door when CPS LN4 or CPS L timer function is used. Activates down mid stop. Down mid stop allows the door to stop at a mid point from an open position. It is strongly recommended that