This BIOSYS Bioreader 3000 Plate Reader is listed for parts or not working condition due to our inability to fully test. PLEASE READ CAREFULLY: The photos in listing show the system being run in the demo mode of one of the programs. The software that is loaded onto the included computer is unfortunately password protected (see photo #4). The software CD-ROM that is included with system appears to not include a license key/license file when it is installed on a different computer (see last photo). As a result, this unit is being sold AS-IS. We urge customers to view all photos as they show overall condition, included accessories, and useful information. We will be happy to provide additional information as well as photos so please feel free to contact us with any questions.