The PLANT!T Water Timer can be used with mains water from a tap outlet or with a gravity feed system from a tank, water butt or reservoir. With controls for duration and frequency link it up to your irrigation line and the timer does the rest. It has 2 easy steps for programming. Turn the RUN TIME dial to desired irrigation duration and the FREQUENCY dial to set the time between irrigations. The PLANT!T Water Timer is ideal for watering allotments, lawns, garden, shrubs, pots, hanging baskets, patio irrigation, roof garden, holiday watering and sprinkler. It is weather resistant and battery operated with an auto safety valve shut off when the battery power is low. This controller has a program delay button for when you need to do plant maintenance work and comes with all the required fittings and an inline filter. It has a working pressure range of 0- 150 PSI (0-10 BAR) and includes the required connector fittings. You can select the frequency of irrigation to every 1, 2, 3, 4, 6, 8, 12, 24, 48, 72 hours or 1 week and with a run time of 1, 3, 5, 10, 15, 20, 30, 60, 90 or 120 minutes.