Watering time can be adjusted from 1 second to 59 seconds or 1 minute to 99 minutes. Watering intervals can be adjusted from 1 hour to 23 hours or 1 day to 15 days. Manual mode lets you use the water you need without interrupting your preset watering routine. It can flexibly control water consumption and save water to the greatest extent. Two 1.5V AA alkaline batteries (batteries not included) are sufficient for power. Automatically stops watering when the battery is low. This outdoor irrigation controller is made of high quality materials. With its IPX5 waterproof rating, tough case and sealing tape inside the device, it can withstand wind and rain. It is very suitable for irrigation occasions such as home gardens, balconies, lawns, courtyards, green plants, hotel greening, vegetable planting, greenhouses, flower beds, etc.