Luxury model with electronic data display and programming tailored to individual requirements. Switches on and off automatically. Watering up to 6 times a day, watering time up to 9 hours and 59 minutes. Watering days can be freely selected. The water computer can also be used to control an automatic water distributor (Art. No. 11989. GARDENA Rain Sensor electronic and Soil Moisture Sensor can be connected. Approx. 1 year running with 1 x 9 V alkaline battery.