Hayward HLBASE OmniLogic Swimming Pool, Spa and Backyward Automation System Any pool or pool &#38;spa combination. Built-in touch display for easy configuration and programming. Controls up to 5 heaters. Ability to add a relay bank and 2 individual relays for a total of 6 additional relays for further Featurescontrol. Wired full-function touch screen wall-mount display for indoor or protected outdoor use.