The Florida Department of Environmental Protection (DEP) is seeking to procure Nile radar water level sensor equipment and accessories from YSI Inc. The equipment is required for the maintenance of reference marks used to determine tidal datums and for the collection of tidal data. The system must include integrated SDI-12 communications and an M-12 connector and must meet all applicable NOAA requirements. The procurement is a single-source acquisition due to the uniqueness of the product and the lack of availability from other sources. • The required system must be durable, highly accurate, and fully compatible with existing monitoring infrastructure. • The system must include a custom radar instrument configuration with integrated SDI-12 communications and an M-12 connector. • The equipment is essential for fulfilling statutory obligations under Chapter 177, Part II, Florida Statutes. • The equipment provides accurate and timely sea level data to coastal communities and supports the preservation of valuable coastal and offshore natural resources.