Solid: The digital densitometer is based on the principle of Archimedes' water displacement method according to GB/T533, ISO2781, ASTMD297-93, DIN 53479, ASTMD792, D618, D891, ISO1183, GB/T1033, ASTM D792-00, JISK6530 using the principle of Archimede's water displacement method, and is based on the density of 1.000 g/cm³ at a temperature of 4 °C.
It is mainly used in rubber, plastics, wires and cables, food, composite materials, cosmetics and other industries. The density values of solids, particles, thin films, floats, and powders can be directly read.
Liquid: Liquid electronic specific gravity balance is based on Archimedes' buoyancy method, according to GB/T21862, GB/T15223, GB/T6750, ASTMD1475, ISO2811-2, ISO1675, DIN53217-3.
This machine is mainly used for chemical solutions, additives, suspensions, emulsions, dispersions, isomorphic solutions, mouthwashes, medicines, and other high viscosity, suspension, emulsion, colloidal density.

| Model | Measuring range | Density accuracy |
| XFMD-3205S | 0.005 ~ 320g | 0.001g/cm3 |
| XFMD-1201S | 0.001 ~ 120g | 0.0001g/cm3 |