With the Aquauno Logica simply rotate a knob to select one of the pre-set programs.  Fine-tuned by Claber irrigation and gardening experts: nothing could be easier to fulfil all the most common gardening needs.  The program features are summarised on the back of the protective cover. Battery-operated, therefore, no electrical connections required: simply screw it onto the tap. Its compact design allows it to be easily installed even in confined spaces.