The Rain Bird WPX-4 controller is designed to manage up to four irrigation zones independently, without the need for a power supply. Thanks to its IP68 certification, it is completely waterproof and dustproof, making it suitable for installation in wells or outdoor environments. Powered by one or two 9V alkaline batteries, it offers up to 6 independent start times for each zone. It supports rain sensors and has non-volatile memory for storing programs.