The single beam flash scan diode array has a visible spectrophotometer that covers 330-800nm. This is driven by a simple menu and has 99 storage methods. Designed to meet the need of compact, light weight , easy to handle instrument ,it and has many features compared to similar simple priced products. It measures Absorbance, % Transmission, Absorbance ratio, Concentration and Kinetics. Wavelength scans, kinetic assays (including slope calculation) and standard curves can be viewed by a large backlight. To make the transfer to computer there is a Graphics PC utility software package (32-bit PC compatible) and a serial lead. There is scope of printing graphics to S1000P or the industry standard Seiko DPU-414 printer. Data is output to a chart recorder.