A cover 10 for keeping an air assisted patient transfer mattress sanitary is disclosed. The thermally conductive holder comprising a material formed from a thermally conductive composition. In another aspect the electronic components also connect to an electromechanical device within the display device, as well as connecting to pads that are external to the display device. The flash light is adapted for selectively adjusting illumination angles to provide variety of light patterns. When the test probe is compressed between the IC package and the printed circuit board, the inherent twisting of the helical spring causes the contact to tilt and make electrical contact with the contiguous coils, thereby establishing a direct electrical path between the IC package and the printed circuit board, with minimum resistance and minimum inductance.