Online Vibration Densitometer &Viscosity Meter are widely used in pipelines, bypass loops, closed or open tanks to detect the density &viscosity of the liquid mediums. This micro motion density meter & viscosity meter working principle is component vibration.The compact and smart design require free maintenance,easy insertion mounted by flange,thread or clamp connectings.High accuracy and stability with long lifespan is the outstanding superiority which is also the reason they are very popular in the automation instrument market nowadays！