PHILADELPHIA, Aug. 22, 2012 — With nearly 55 million students, teachers and school staff about to return to elementary and secondary school classrooms, scientists today described a new hand-held sensor ― practical enough for wide use ― that could keep classroom air fresher and kids more alert for learning. The sensor detects the amount of carbon dioxide (CO2) in classroom air.

Jennifer L. Maclachlan
PID Analyzers, LLC

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