OVERVIEWFloat controller is mainly used in equipment which request water level is regularly kept unchangeably. Float controller can be widely used in automobile,industry equipment,agriculture equipment and household electrical appliances. We use reed as an action contract,long life cycles and high reliability. Models and Types: Based on the appearance, we have KSW-1 and KSW-2 model. Each model has normally open or normally closed type(when at a lower level).