The Aquauno Logica Balcony Water Timer is an automatic oneway only timer with 15 pre-defined programmes, that have been specially designed keeping in mind, both balcony as well as roof, terrace plant requirements. It is possible to switch it on simply by turning the knob to any one of the 15 numbered notches, so that you can set the programme required in a matter of seconds only. It has been designed for direct connection to the Rain sensor. It is also equipped with a stainless steel fully washable filter as well. And requires only one battery for the duration of an entire season. All the programmes that are available with this timer have been summarized in a diagram printed on the cover. Apart from that, it also sports an LED to let you know that it is operational. This is a great one time only investment for all of your roof terrace and balcony plant requirements. 1-line water timer with 15 preset cycles Simple twist knob to set in seconds One 9V battery can power for full season