A groundbreaking hydrogen sensor developed at The University of Manchester has the potential to revolutionize the safe deployment of clean hydrogen energy. The sensor, created by a scientist at the university, offers a reliable and fast detection method for even the smallest amounts of hydrogen. Published in Nature Electronics, the sensor's performance surpasses that of portable commercial detectors, showcasing a significant advancement in hydrogen safety technology. Through collaborations with the King Abdullah University of Science and Technology in Saudi Arabia, the sensor operates on organic semiconductor technology using a process known as 'p-doping.' This process allows for rapid and reversible detection of hydrogen, proving effective in various real-world scenarios like leak detection and monitoring hydrogen diffusion. The sensor's flexibility and integration potential into smart devices enable continuous monitoring of hydrogen systems in real time. The team is now focused on further development and long-term stability assessments of the sensor, highlighting its promising applications in industries, homes, and transport networks.