A photoelectric scanner screen device wherein the object to be scanned is illuminated by light from an external light source such as a CRT of a monitor associated with a desktop computer. In some cases, a first operation, such as a scan, may have a resource conflict with a second operation associated with a different protocol. A meta-controller is activated to drive the primary controller to the same states at which the secondary or redundant controllers operate. The sensors of the camera channels are integrated on a semiconductor substrate. A novel display driver for performing the methods of the present invention is also disclosed. The present disclosure relates to a monitoring system for sensing and transmitting indicia of temperature in a child’s vicinity andor of a child.