This Chemglass OptiChem Tempstir Digital Overhead Stirrer is in good condition, was removed from a working environment and is guaranteed to be functional. This item came from a local lab that had surplus lightly used equipment and may show signs of normal use. We urge customers to view all photos as they show overall condition, included accessories and functionality. Listing only includes what is shown in photos. Sale of unit comes with a 30-day full money back guarantee return policy. Please feel free to contact us with any questions.