A color balancing circuit for a flat panel display such as an electroluminescent display generates a primary current that can be varied to adjust the overall brightness of the display. The fixed wheel and the weight wheel share a common shaft which is perpendicularly connected with a link and the at least one rotatable wheel is rotatably connected to an extension on an end of the link. The sensor is configured to measure color or turbidity. An inputoutput controller is mounted in the panelboard for controlling operation of the remote operated device, the IO controller comprising a programmed controller for generating the control commands for commanding operation of the remote operated device, the control system including a communication circuit for communication with the remote operated device communication circuit. The liner is made of a flexible material capable of being impregnated with a first curable adhesive resin and has a film made of a material impermeable to liquid bonded onto the inner surface of the liner.