T7SG series includes industrial transmitters for continuous specific gravity measurement in liquid, mud, cement slurry, etc, manufactured using two seals placed at a fixed distance and connected through capillaries to a DP cell. The instrument gives the specific gravity value of the product by measuring the hydrostatic pressure between the two seals (Dp) and applying the formula SG=Dp/d where “SG” is the specific gravity, “Dp” is the differential pressure and “d” is the distance between the two seals. T7SG series transmitters are manufactured with an especially heavy duty mechanical construction and allows signal output both in analogical 4÷20 mA and digital HART® protocol form. T7SG series transmitters are used in all industry branches for continuous specific gravity measurement of liquids in tanks.