Zuzi 4111RS Visible Spectrophotometer. Manual selection of wavelength. Wavelength range: 330-1000 nm. Bandwidth: 8nm. Absorbance, transmittance and concentration reading. Compartment for 1 cuvette of 10 mm. Includes 2 glass cuvettes with a 10 mm light path. RS232 output for connection to PC and application software for concentration curves and enzyme kinetics curves.