This water level controller support automatic water pumping, it can be used to control the water supplys of the pool and water tower. Automatic draining, it can be used to control the drain of underground garage. Equipped with phase loss protections, help protecting the water pump from dry burning. You can have a try. Features: Automatic water pumping, it can be used to control the water supplys of the pool and water tower. Automatic draining, it can be used to control the drain of underground garage. Equipped with phase loss protections, help protecting the water pump from dry burning. The upper and lower joined design, so that the upper and lower pools can be controlled at the same time. Quick induction speed and high sensing sensitivity, designed for timely controls. Optional: Matching water level probe, line safety probe, no pollution to water. Specifications: Name: Water Level Controller Material: plastics Type: DF-96DK, DF-96DK+3pcs 2m probe, DF-96DK+3pcs 5m probe, DF-96DK+3pcs