1. Directly read the density, volume and purity of gold, platinum and other precious metals 2. It has the functions of temperature compensation setting and solution compensation setting, more humanized operation and better meet the needs of on-site operation 3. The density measuring table is integrated with injection molding, which is convenient and fast to install and longer to use 4. The integrated corrosion-resistant large water tank design is adopted to reduce the error caused by the buoyancy of the hanging rail line, and it is also convenient to test large block objects 5. It has the functions of upper and lower density limits, which can determine whether the specific gravity of the object to be measured is qualified or not. Equipped with buzzer device