The Cary 4000 is a high performance UV-visible spectrophotometer with excellent photometric performance in the 175-900 nm range, making it a powerful tool for analyzing biotechnology samples with minimal sample preparation. Controlled by the Cary WinUV software, a Windows-based modular software, it can be ordered with specific modules for bio and pharma. The UV-Visible spectrophotometer has a number of optional accessories for liquid samples like temperature control, autosamplers, multicell holders, and sippers.