Solinst Eureka Manta+ Multi Parameter Water Quality Sonde compatible expansion sensors and communication module

Mississippi State University is seeking to purchase four proprietary expansion components for its existing Solinst Eureka Manta+ multiparameter water‑quality sonde. The items (dissolved‑oxygen sensor, BGA‑PC phycocyanin sensor, turbidity sensor, and a Bluetooth communication module) are only available from Solinst Eureka, making the acquisition a sole‑source justification. The purchase will enable continuous monitoring of dissolved oxygen, blue‑green algae, and turbidity without replacing the $13,000 base sonde. • Procurement of four Solinst‑approved sensors and a communication module (total cost $7,398). • Sole‑source justification due to proprietary mechanical, electrical, and firmware interfaces; no compatible third‑party alternatives. • Intended to extend the capability of an existing research instrument, avoiding the higher cost of a new sonde and ensuring data compatibility.