This water level controller support automatic water pumping, it can be used to control the water supplys of the pool. Automatic draining, it can be used to control the drain of underground garage. Equipped with phase loss protections, help protecting the water pump from drying burning. You can have a try. Features: Automatic water pumping, it can be used to control the water supplys of the pool. Automatic draining, it can be used to control the drain of underground garage. Equipped with phase loss protections, help protecting the water pump from drying 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 10m probe, DF-96DK+3pcs 2m probe+18A contactor (optional) Item size: 92 * 49 * 66mm/ 3.62 * 1.93 * 2.60in Package size: 150 * 100 * 60mm / 5.91 * 3.94 * 2.36in Package weight: DF-96DK: 350g / 0.77lb DF-96DK+3pcs 2m probe: 440g / 0.97lb DF-96DK+3pcs 5m probe: 575g / 1.27lb DF-96DK+3pcs 10m probe: 800g / 1.76lb DF-96DK+3pcs 2m probe+18A contactor: 510g / 1.12lb Packing List (DF-96DK): 1 * Water Level Controller OR Packing List (DF-96DK+3pcs 2m probe): 1 * Water Level Controller 3 * 2m Probe OR Packing List (DF-96DK+3pcs 5m probe): 1 * Water Level Controller 3 * 5m Probe OR Packing List (DF-96DK+3pcs 10m probe): 1 * Water Level Controller 3 * 10m Probe OR Packing List (DF-96DK+3pcs 2m probe+18A contactor): 1 * Water Level Controller 3 * 2m Probe 1 * Contactor