The Model E809A Storage Indicators are designed to show the approximate level of liquids in tanks to which they are connected.
They are available in two types: type T for tank mounting and type W for wall mounting.
The construction is fundamentally the same on both types of indicators: the metal indicator board, graduated in feet and inches (gallonage calibration availabe as an option), an indicator marker to show the approximate level of the liquid, a float, sheave ells, bar supports, and the necessary screws, nuts and bolts for mounting. Sheave ells, indicator marker and name plate finished in black enamel. The metal indicator board is white with black figures.