Tank Gauging Systems (TGS) providing reliable liquid level gauging indication & control for demanding applications & environments. Tank Gauging Systems manufactures quality liquid level gauging systems for Above & Below Ground Storage Tanks and Vessels. Ranging from water & wastewater to highly corrosive fluids TGS provides standard & custom design level gauging solutions with control options. Simply designed mechanical level gauges can be completely upgraded with electronic and pneumatic outputs to provide liquid level control for alarms and/or pump control.