has powerful functions such as four timing control programs can be set, temporary opening for unlimited time and so on. With this timer, you can irrigate your plants intelligently and automatically. If you are interested in this product, come and try it, it won't let you down. Four timing control pograms can be set: P1, P2, P3, and P4. You can set four different timing control programs according to your needs. Free Setting: The maximum opening time can be set to 599 minutes, with an interval of 1-30 days, suitable for most plants. Temporary Opening Function: You can turn this on if you want to water your plants temporarily. If manual temporary watering is required, press 34 manual 34 and then press 34 34 or 34 34 to set the watering duration, and press 34 setup or OK 34 once to complete the setting. Large LCD Display: This controller has a large LCD display screen, you can see the display more clearly, press button for you to adjust the parameters and modes. Specifications: Material: ABS Maximum opening time: 599 minutes Interval time: 1-30 days Water pressure: 1-8kg Flow: 500-1700L or H Water temperature: 1-50 Modes: P1-P4 Power: 2 x AA battery (NOT INCLUDED) Package size: 135 x 115 x 97mm or 5.3 x 4.5 x 3.8in Package weight: 259g or 9.1ounce Note: The equipment does not work under low temperature conditions, which may cause structural damage. When the temperature is lower than 0 , please disassemble and put it back indoors. Since the water demand of plants is different in each season, it is should be reset the irrigation program in each season to meet the water demand of plants. Due to impurities in tap water and stainless steel filter in the connector, it needs to be cleaned in time to avert blockage. Packing list: 1 x Controller Set