Planetary gear mechanism float connected with a string moves down as the liquid level goes down in the drum.
Float is partially filled with water & changing the amount of water allows for the same unit to be used with liquids of
different viscosities
Commonly used on Oil &Fuel drums the float has a Polyethylene construction which allows it to be used with a wide range of liquids including water, coolants etc.
Face of the Indicator is fitted with a display marked from 0 to 210 Litres. Reversing the display gives graduations
