Gilmont Falling-Ball Viscometer from Thermo Scientific

Thermo Scientific™ Gilmont Falling-ball Viscometers offer a simple, accurate, low cost, absolute method for measuring viscosity of clear fluids up to 200cp. Easier to use than capillary type, and less expensive than rotating/sensor electronic-based devices.


  • Unique ball-release mechanism
  • Wetted parts of glass, PTFE and Viton™ seals (stainless steel and tantalum floats optional)
  • Three range options per tube allow for better accuracy in each range
  • Absolute reading, no electronics
  • Small sample size: approx. 7mL required
  • Easily used in constant temperature bath
  • Closed system ideal for highly evaporative and hydroscopically deteriorative solutions