Marco’s Classic Lensmeter with LED Illuminaton System Features New LED illumination system provides efficient, consistent, illumination level Powered by AC adapter, or standard D-cell battery system A classic design with solid construction uses brass and stainless steel components to help prevent premature wear and maintenance Full 90-degree adjustable inclination to accommodate measurement of contact lenses American-style cross-line target produces clear, crisp images Prism compensating device is standard Self-inking marketing pins eliminate messy and continuous re-inking