Pic 3 (IMAGE) National Research Council of Science & Technology Caption Performance evaluation results of the ultra-sensitive gas sensor developed by KRISS. (a), (b): Measurement results of NO2 with different concentrations demonstrate excellent measurement resolution. (c): Consistent measurement results were observed when the measurement of NO2 with the same concentration was repeated, which indicates high reproducibility and measurement reliability. (d): The sensor exhibited excellent ability to selectively detect NO2 among several interference gases. Credit Korea Research Institute of Standards and Science (KRISS) Usage Restrictions The sources of photos and research results from KRISS must be specified. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.