An easy & cost effective means to check the level of fluid remaining in a drum/tank.
Fits on the small 3/4" hole on drums leaving the 2" opening free for installing pumps.
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 and fuel drums, the float has polyethylene construction which allows it to be used with a wide range of liquids including water, coolants etc.
Unit of measure: Gallon
This is not a precise measuring device.
Gauge is only to give an approximate/indicative level of liquid in the drum to know when to arrange for a new drum.