Features: Intelligent control, rain sensing, accurate timing. Anti blocking nozzle, energy-saving, waterproof, safe and reliable. Knob design, simple operation. Manual watering available. Specificati more→on: Material: Plastic Type: Ball Valve Size: As picture shown Working water pressure: 0 to 8 bar (0 to 116 psi) Power Supply: Battery operated (LR03 2XAAA 1.5V Alkaline battery)(Not included) 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 Manual Watering: turn the "Run Time" dial to "ON", it will start water immediately until the dial is turned to other position Once program set, it will repeat the cycles