The Automatic Water Level Controller for submersible pumps from Vahra Technology guarantees effective water management. This controller provides ease and water conservation by precisely monitoring water levels and automatically adjusting pumps to maintain optimum levels. It gets attached to the three phase starter, and as soon as the level of water tank goes down, it turns on your three phase pump with the help of starter, and as soon as the level of tank becomes full, just before overflow, it turns off the pump with the help of starter. Its another specialty is that it takes all the signals from inside the tank with just 2 wires.