Features *  DC brushless motor is durable and maintenance free. *  9 sets program memory function. *  Self-diagnostic function which can detect the errors for unbalance, over heat, over current, over voltage, over     speed, lid opening. *  Auto-balancing system can extend motor life and reduce noise. *  With safety interlock, it can prevent the lid from being opened during operation. *  Forced fan air convection prevents the motor from overheating. *  Precision digital timer can vbe set to 30 minutes with 1 sec. increment. *  DSC-302SMD can offer short runs by pushing the function key. *  LCD digital display enables users to monitor the present speed value and the remaining time. *  Automatic brake system can offer rapid deceleration. *  DSC-302SMD features a see-through window. *  The lid will be opened automatically once the rotor stops spinning. *  Quality cetificate: ISO 9001, ISO 13485