Electronic water timer with daylight sensor that automatically waters at sunrise, sunset or both. The best time to water your garden to avoid evaporation in the heat of summer.  Waters once or twice per day from 2, 5, 10, 20, 30 or 60 minutes. With adjustable watering schedules from every day to once a week. The 'Water now' function ranging from 10 minutes up to 60 minutes is handy for immediate usage.  The low battery indicator illustrates when the AA batteries require changing. Features and Benefits Water at sunrise or sunset - It's the best time to minimise water evaporation and leaf scorch, but it is not always convenient to do it yourself at these times of the day. Hozelock Sensor Controller takes care of this for you - it includes a day light sensor that automatically adjusts your watering schedule to start at sunrise and sunset. No need to programme ever again, it will automatically change the start times to coincide with sunrise and sunset as the seasons change. Daylight Senso