Simple Regulation: 8 Modes help you tend your flowers, trees and vegetables daily every two, three, five or seven days Widely 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 it Working Principle: Ball Valve works with 2 AAA Alkaline 1.5V batteries Water Saving and Environment Friendly: This Timer can work with water and rain, it protects the water resource. Product description: 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 cant get inside Features: Use one LR032XAAA 1.5V alkaline battery (not included) High impact durable construction Clock time display 8 different programs ready to be set Operating pressure: 0 to 8 bar (0-116 PSI) Working temperature: 5-60 C (40-140 F) Can be attached to a 3/4 (19 mm) faucet or faucet Manual watering: can be set for one-time instant manual watering Manual On, Manual Off, Automatic Mode Frequency can be set per day, or each day of the week, 15 different day choices