VWR hotplate hot plate digital model 720 advanced ceramic

Used VWR hotplate model 720 advanced- 908 watts 115 v. heating regulator working well. heats up pretty fast. the digital display shows the temperature. The stirring option doesn't works- sometimes it rotates then shows error message- the motor needs the fine adjustment to get the system fully functional.. 7"x7" hot plate ceramic. tiny chip at left corner. . If not satisfied. You can return this unit withing 14 days for a full refund minus shipping both ways. Lot con3/1rightbot