Labtron Nano Spectrophotometer measures 1 to 2 µL samples at 260 and 280 nm for nucleic acid concentration, 260/280 purity ratio, and OD600 analysis without cuvettes or capillaries. A UV-LED light source, UV-silicon photocell detector, and 0.5 mm path length support dsDNA detection from 10 to 2500 ng/µL. The 7-inch Android touchscreen, built-in printer, and USB interface simplify laboratory data documentation.