This Scientific Industries SI-3236 Megamag Genie Digital Magnetic Stirrer has been tested and is guaranteed to be fully functional. This item came from a local lab that had surplus inventory. Stirrer shows aesthetic signs of normal use. We urge customers to view all photos as they show overall condition, included accessories and functionality. Please feel free to contact us with any questions. *Stirrer bar not included Designed to safely and reliably mix liquid volumes up to 38 liters (10 gallons) using magnetic stirring bars. The rugged housing is made with an engineering grade thermoplastic resin and can support up to 85 pounds. Specifications Speed (RPM) 250-1300 Maximum Stirring Positions 1 Stir Bar Maximum Length 7.6 cm (3in) Top Surface Dimensions (D x W x H) 305 x 305mm (12 x 12in) Timer 1 second - 99 hours Selectable Ramp Rates 5 - 300 rpm/sec Product Weight 3 Kg (6.6 lb) Overall (D x W x H) 310 x 305 x 130mm (12.25 x 12 x 5.1in) Maximum Stirring Capacity 38 L Body Material ABS/Polycarbonate 120V 60HZ