Accessories and high transparent unicase injection moulding tank have been equipped for solid density.which can resist wear,fall off and corrode; Stainless steel measuring frame and standard volume crystal ball have been equipped for liquid density,whose features are hommization,shorter measuring time,simple operation,stable and accurate; It is suitable for the field of quality management,cost control,new formula researching and material studying and so on. DH-300X can be applied to measure the density of general solid material and plastic particle.Also,it is appropriate for powder and liquid.