Graphic Controls supplies a full line of charts and markers to fit all available Dickson recorders Graphic Controls charts and markers provide precise fit and function for all available Dickson recorders. Our products deliver OEM performance at factory direct savings. Versatile and durable, Dickson recorders are used in a wide variety of applications and conditions measuring temperature, humidity, and pressure. Graphic Controls charts and markers perfectly complement these diverse applications and conditions to ensure your critical data is accurately recorded and preserved.