Smooth, even water delivery without splashing and pulsing. The LILIE sensor diaphragm pump enables a convenient fresh water supply, on the road as well as at home. The high-performance sensor diaphragm pumps adjust variably with the whisper control. The water pressure is permanently sampled and regulated by the sensor. Its signals are transmitted to the microprocessor-controlled electronics in the foot. The electronics meter the water volume exactly as required by regulating the motor speed and flow rate. The pump starts up very quietly, does not splash and delivers evenly without temperature fluctuations. The function remains quiet at any pressure and flow rate.