The Corning PC-210 Analog Laboratory Stirrer, 4 x 5 Inch Top, Model 6795-210, has stirring controls that allow the user to monitor and regulate the stirring speed for viscous, aqueous, or semi-solid solutions.

It also has a microprocessor control that can automatically adjust its motor strength to any solution. 

Specifications:

• Speed: 60 to 1100rpm
  
• Material: Pyroceram
  
• Electrical Requirements: 120V, 60Hz, 33W
  
• Dimensions Top Plate: 4" x 5"
  
• Dimensions: 7.3" L x 5.8" W x 4.4" H (2.87 x 2.28 x 1.73)
  
• Weight: 4.5 lbs (1.95 kg)