Use method: 1. Install the battery.The water valve will be self-check.Then ball valve will be turn to close status.2. You can turn the B button to circle time that you need.3. Turn the A button to a number that will be continue irrigation.4. According to the programs set.The water valve will be operate within 10 seconds. DETAILS Waterproof Cover Because of integrated design and waterproof protective cover, the water timer with LCD display is well protected. The timer won't be damaged even if on rainy days Automatic & Intelligent After setting the watering frequency and water time, even if you are away on holiday, do not worry plants unattended With Metal Grid There is a built-in filter in the water timer to stop large particles. And it protects our plants or vegetables from lime or other particles. Package Including 1Pc watering Controller