The present invention provides a maintenance-efficient birdbathfountain assembly essentially comprising an upper annular basin, a lower support reservoir, a fountain assembly, and a decorative cap. In a PSA-mode display device in which alignment of liquid crystal molecules substantially vertically aligned between the substrates is controlled by applying a voltage, a pre-tilt angle can be properly given without being inhibited. The sensor assembly includes a housing that is mountable on a side wall of the pool. If the information written to the second non-volatile storage device is accessible, then the method copies the image of that second non-volatile storage device to an external storage device. The user may scan bar-coded information contained on an identification tag attached to the equipment.