The GARDENA MasterControl solar irrigation computer is attached to the tap and controls the automatic irrigation of your garden, e.g. with sprinklers, a drip system like the Micro-Drip-System or the GARDENA Sprinklersystem. The MasterControl solar model has a powerful solar cell that stores energy in the included rechargeable lithium-ion battery. Even when it is cloudy, the battery is charged, and the system remains uninterrupted and reliable. Programming of watering times is easy: the control unit with its large and clear display can be removed for convenient programming. The large display explains with on-screen instructions in ten selectable languages which programming steps are to be performed in which order.