The float, suspended to a cable supported with 2 pulleys, drives a balance weight inside the external guiding support made of PVC.
The balance weight is suspended to a third pulley in order to reduce at half the path.
It has a built in magnet to operate the level switches or a continuous level 4-20 mA transmitter (optional accessories).
The float exists in PPh or stainless steel 316L. It moves along two cables inside the tank to avoid damage or to loose it with fluid turbulences.

For all level indication on very large height tanks or to reduce indication support length on top of a tank.