Sensor in use over a toilet (IMAGE) Acoustical Society of America Caption The sensor in use over a toilet. Credit Maia Gatlin Usage Restrictions Journalists may use this image only with appropriate credit and when reporting on this research. 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.