Bio-Rad offers two versions of the economical Model 680 microplate reader, the standard model and the Model 680 XR reader, which offers an expanded detection range (UV to near-IR wavelengths). With both models, onboard software provides secure user log-in, protocol and data storage, curve-fit and reporting functions. Preprogrammed protocol and reporting functions for Bio-Rads TSE (transmissible spongiform encephalopathy, such as BSE) kits and the Checkmark™ installation qualification/operational qualification (IQ/OQ) validation kit are also available with both onboard and PC software packages. An onboard graphical thermal printer and precision temperature control are factory options for both readers.