• Easy speed changes
• Conventional oilfield rotor, bob and torsion spring
• Adjustable table height to accommodate a variety of beaker/container sizes
• Shear stress values displayed on easy-to-read lighted dial
• Maintains a constant shear rate under varying input power and drilling fluids
• Measures viscosity of drilling muds and fracturing fluids according to established methods from the American Petroleum Institute and the ASTM


Motor Speeds: 8 fixed (3, 6, 30, 60, 100, 200, 300, 600)
Min. Viscosity: 0.5 cP (@600 rpm)
Max. Viscosity: 10,000,000 (@0.01 rpm)
Speed Accuracy: 0.001 (rpm)
Readout: Direct dial with light
Heat Cup: Stainless steel, 150 Watt, 190°F (88°C) maximum temperature recommended
Geometry: True Couette Coaxial Cylinder
Power: 97-250 VAC, 50/60 Hz (12 volt operation requires special cable)
Carrying Case: Included