**By purchasing this product I understand this product must be installed outdoors by a licensed plumber or qualified pool professional. This product must be factory modified for high altitude locations.**The LXI includes automation ready features to provide convenient pool to spa switching. The LXI's user-friendly graphic interface is a key element in your RS controlled pool/spa environment that lets you perform complete diagnostics, set precise pool and spa temperatures or switch from pool to spa mode at the touch of a button.