Vibration Density Meter is widely used in pipelines, by-pass pipes open tanks and closed tanks to detect the density of the liquid medium. The density of the fluids directly depends on the vibration frequency received by the tuning fork in the sensor inserted into the medium. The built-in temperature sensor of the sensor provides temperature compensation. The DS-F can show both liquid density and concentration on the display screen, and can output both density and concentration signal by 4-20mA or RS485. The DS-F is also referred to as a Micro Motion Density Meter, Tuning Fork Density Meter, Direct Insertion Density Meter and Online Densitometer.