An optical device for rerouting and modifying an optical signal that uses a double pass through a liquid crystal modulator is disclosed. The method provides for a lignin-blocking polypeptide andor protein treatment of high lignin solids. The first side has a first textured surface, wherein between 7 to 20 percent of slope angles on the first textured surface proximate a first axis has a value between zero and five degrees. In other embodiments, the gauge includes either a universal paper indicator or a chemically coated cartridge indicator in communication with the battery and adapted to change in color to indicate venting of the battery. An input terminal of the third DC-DC converter is connected to both an output terminal of the second DC-DC converter and an output terminal of the first DC-DC converter.