Level Devil Water Indicator Gauge (Small Tanks)
This is one of the more popular float based water level indicators. The Level Devil is installed in tanks around the world.
The Level Devil is a true reading as it shows the actual water level so you see what you see is what you have in the tank. It is a simple float/weight/pulley system
The weighted float and indicator is connected to a counterweight by separate cords, running over a pair of pulleys. So when the float is half-immersed the system is balanced therefore giving a true reading. When the water or liquid rises level lifts the float up, the counterweight moves down, and the indicator moves to show the level of liquid.
It is easy to install.