A timed irrigation controller is an intelligent device used to automatically control the operation of an irrigation system. According to your description, this timed irrigation controller has the following features: Rain sensor: The controller can sense the current weather conditions through the rain sensor. When rain is detected, the irrigation operation will be automatically stopped to avoid wasting water resources. 9 groups of timing: It provides 9 groups of independent timing settings, you can set the time, frequency and duration of each group of irrigation according to your needs. This allows you the flexibility to manage the irrigation needs of different parts such as gardens, lawns, plants, etc. Weak current protection: The controller has a weak current protection function. When the power supply is unstable or cut off, it can automatically switch to the backup power supply or enter the standby mode to ensure the normal operation of the controller. This ensures that your irrigation system will continue to function properly even if the power is unstable. Super Battery Life: This controller has excellent battery life and can provide long hours of use on a single charge. This saves you from having to replace batteries as often, reducing maintenance costs and inconvenience. In general, this timing irrigation controller can intelligently manage your irrigation system through features such as rain sensing, flexible timing settings, weak current protection and super battery life, which improves irrigation efficiency and saves water resources and maintenance costs . Product parameters: working voltage: 9V, product net weight: about 500 grams, product size: 120*80*105mm, water pressure: 0.1mpa, flow: 10L/min, water pressure: >0.5mpa, flow: 20L/min .