The GARDENA smart system Set contains all components required for perfect and fully-automatic lawn care and efficient water management in your garden in accordance with requirements. The smart Water Control and the smart Sensor automatically control the water supply in your garden, and thus ensure the flexible irrigation of your plants in accordance with requirements. The irrigation times can be conveniently adjusted via the GARDENA smart App and aligned with the mowing times of the smart SILENO. Based on the measurement values for the outside temperature, the light intensity and the soil moisture as determined by the smart Sensor in your garden, the settings for the Watering Control can also be optimally adjusted to suit ambient conditions and can be aligned at any time wherever you are via the App. The smart SILENO keeps your lawn accurately to length, and you can enjoy your leisure time. Thanks to the SensorCut System, the Robotic Lawnmower does not cause lawn stripes, but rather leaves a perfectly maintained carpet of lawn. It runs so quietly that it is hardly possible to hear it mowing the lawn before it returns fully automatically to the charging station. The mowing times can be freely-adjusted via smart App and aligned with the irrigation times of the smart Water Control. The smart Gateway ensures the central networking of all devices. It can be inconspicuously placed in your living area and produces an Internet connection via an existing router. In this way, it acts as the core of the smart system to permit cable-free network communications between all GARDENA smart system devices in the garden and the GARDENA smart App. The smart Sensor and the smart Water Control are operated using two or three AA batteries 1.5 V alkaline (not included in delivery).