Simple Regulation: 8 Modes help you tend your flowers, trees and vegetables daily every two, three, five or seven daysWidely Used: This controller is suitable for 19mm pipes/valves. Compatible with garden sprinklers (up to 8 bar) or cisterns and water collectors (0.1 bar).Excellent Quality: Able to work under bad weather because it is waterproof and the batteries are hidden in itWorking Principle: Ball Valve works with 2 AAA Alkaline 1.5V batteriesWater Saving and Environment Friendly: This Timer can work with water and rain, it protects the water resource.:This timer allows you to set it and it will do the watering for you.Please close the top cover very tightly, to ensure that water can't get insideFeatures:Use one LR032XAAA 1.5V alkaline battery (not included)High impact durable constructionClock time display8 different programs ready to be setOperating pressure: 0 to 8 bar (0116 PSI)Working temperature: 560 C (40140 F)Can be attached to a 3/4' (19 mm) faucet or faucetManual watering: can be set for onetime instant manual wateringManual On, Manual Off, Automatic ModeFrequency can be set per day, or each day of the week, 15 different day choices