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 insideCan be attached to3/4''(19mm)tap or faucetManual Watering: can be set for one time instant manual watering,Manual ON, Manual Off, Auto modeFrenquency can be set per day, or each day of a week, 15 different day choicesFeatures:UseLR032XAAA 1.5V Alkaline battery (not included)Durable high impact constructionClock time display8 different Programsready to be setSimple, reliable, water-proofWoring pressure: 0 to 8 bar(0-116 PSI)Working temperature:5-60C(40-140F)Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-3cm measuring deviation due to manual measurement.Packing list:1*Irrigation TimerWater Timer for Garden Hose