An apparatus includes a first lens, a liquid lens, imaging sensor arrays, an aperture stop, and a barcode decoding system. The monitoring apparatus has a room mirror arranged in the passenger compartment and a plurality of imaging devices arranged in the room mirror. A water path is defined from the reservoir to the trough, wherein water within the reservoir is configured to pass into the water basin through gravity. The metal interconnection is positioned between said virtual power supply line and said ground line within said switch cell.