Wall case for CYD display 503-504

Wall case that fits perfectly the housing type 503 (83,6 mm between screws) and 504 (108,4 mm between screws).Minimal design. Fix the back part to the wall without making new holes, it will let the wires pass through from the wall so you can also install a small 5V power supply. The front part that host the display will fit on the back part without screws, just click it in. It will be steady and clean. There is a round spot with a thinner wall to let the ambient light illuminate the built-in light sensor (when the plastic color is white or clear enough). You will need 4 little screws to fix the CYD on the front box.