Microprocessor UV-VIS Spectrophotometer is a solid state microcontroller based instrument designed for quick and accurate spectrophotometric analysis of any concentration. It operates at a wavelength range of 190 nm to 1100 nm. The instrument uses the latest microprocessor technology and advanced engineering techniques so as to give enhanced accuracy and reproducibility. The instrument is equipped with 128 x 64 dots large graphical LCD which makes the result easy to read. User can see the standard curve on-screen. The system has soft touch numeric keys with complete numeric key that provides a convenient interface for entering numeric values. Provision has also been made for attachment of any dot matrix printer using centronics interface and PC connectivity through USB port. Large Sample Compartment, can accommodate 5-100 mm path length cuvettes with optional holders. The instrument is supplied with a 4 position 10mm cell changer. The 'Basic' PC software for quantitative / kinetic mode is supplied with the instrument. The 'Professional' PC software is optional for extending the functionality to wavelength scanning and DNA/Protein analysis (at extra cost).