Michal Chojnacky, Ms¹, Gregory Strouse, Mr¹, Wyatt Miller, Mr², John Stevenson, MA³ and Tony Richardson, Mr⁴, 1Sensor Science Division, Temperature and Humidity Group, National Institute of Standards and Technology, Giathersburg, MD, 2Sensor Science Division, Temperature and Humidity Group, National Institute of Standards and Technology, Gaithersburg, MD, 3National Center for Immunization and Respiratory Diseases (NCIRD), Centers for Disease Control and Prevention, 4NCIRD / Vaccine Supply and Assurance Branch, Centers for Disease Control and Prevention, Atlanta, GA