This report summarizes the results of low cost air quality sensor performance trials conducted in the NERLs on-site laboratories located in Research Triangle Park, NC during 2012-2013. Such trials were viewed as highly valuable for all parties following the conclusion of the U.S. EPAs Air Sensor and APPs conference conducted in the spring of 2012. Conference attendees from a wide range of interests (government, sensor development, citizen scientists, etc) concluded that basic sensor performance characteristics of available sensor technologies were unknown. Many potential users of these technologies were unaware that data quality needed to be established or how one might perform such determinations. Many conference attendees shared that the U.S. EPA needed to take a leadership role to both educate sensor developers and end users about needed performance standards, share technical information about how one would establish such characteristics, and foster continuing dialogue between all interested parties on this subject matter.