Prototype hydrogen sensor (IMAGE) RMIT University Caption PhD researcher Ebtsam Alenezy holds a prototype of the light-activated hydrogen sensor, which can deliver ultra-precise results at room temperature. Credit RMIT University Usage Restrictions Credit RMIT University License Licensed 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.