Opti O2, LLC is an ambitious start-up company that has received more than $5 million in grant funding to commercialize an optical dissolved oxygen (DO) sensor probe system that will provide 24/7 measurement of water quality in soil, aquatic and marine environments. Relying on a patent-pending sensing film, the Opti O2 sensor probe system provides validated and reliable measurements, with the advantage of multi-site monitoring capabilities using a scalable network of probes and with reduced post-deployment maintenance costs. Opti O2, LLC, was founded in 2011 by Dr. Ruby Ghosh in her laboratory at Michigan State University. The company currently has seven employees and plans to hire two additional full-time employees. At present, the Company's core competencies lie in the areas of sensing film chemistry development, electronics development, enclosure development, firmware/software development, and sensor assembly/testing. Target markets for the Opti O2 sensor include: environmental monitoring; waste water processors and watershed authorities; and, aquaculture. The company expects to enter into the commercialization phase of production during the 2019 calendar year.