Product Description: >This timer allows you to set it and it will do the watering for you. >Please close the top lid very tight, to make sure water can not go inside Features: >Norain sensor hole > Battery operated ( 2XAAA 1.5V Alkaline battery )( not included ) > Strong Ball valve inside > Woring pressure: 0 to 8 bar(0-116 PSI) >Working temperature:5-60C(40-140F) > Manual watering available( on/off) > Can be attached to 3/4''(19mm) tap or faucet > Once program set, it will repeat the cycles until new settings > Frequency: (can be set at 1, 2, 3, 4, 6, 8, 12, 24, 48, 72 H, and Week) > Run Time: (can be set at 1, 3, 5, 10, 15, 20, 30, 60, 90, 120 mins)