A simple key card controller which will operate from mains supply or from a water butt or tank.  Setting the unit is simply carried out by selecting the desired actions on sliding mechanism on the card, inserting the card, starting the read process and then removing the card.  3 start times a day from 1 minute to 3 hours.  Needs 4 x AA batteries (not supplied) Can be attached to the Gardena moisture sensor  ( GWCMS).