As hydrogen emerges as a prominent clean energy solution, the importance of pressure sensors in maintaining safety, efficiency, and reliability within hydrogen systems becomes evident. This white paper by Druck, a Baker Hughes company, focuses on the critical role pressure sensors play in the hydrogen industry. It delves into the challenges posed by hydrogen's unique properties such as embrittlement and permeation risks on traditional sensing technologies. The document further explores the necessary design considerations, material impacts, and the evolution of certification standards like UN ECE R134 to adapt to the demands of hydrogen applications. Moreover, advanced solutions like Druck's barrier-coated diaphragm and TERPS technology are discussed for their ability to excel in severe hydrogen environments. These innovations are engineered to address the complexities of working with hydrogen while ensuring the safety and performance of pressure sensors in various stages, from production to distribution. By providing insights into cutting-edge sensor technologies and solutions tailored for hydrogen systems, this white paper aims to advance the understanding and implementation of efficient and reliable pressure monitoring in the hydrogen sector.