The DH-RVDV-1 High Viscosity Rotary Viscometer is a precision instrument designed for measuring the viscosity of Newtonian and non-Newtonian fluids. It can measure the viscosity of a wide range of samples, from highly viscous liquids to extremely low viscosity liquids and even gas samples. This viscometer is easy to use and provides accurate and repeatable results. The instrument has a wide measuring range and can be used for a variety of applications in research and industry. It is an ideal choice for applications such as product development, quality control, and process control.