As the world searches for cleaner sources of energy, demand for the use of hydrogen continues to increase. In green hydrogen production, water is separated from hydrogen and oxygen downstream of the electrolyzers. The oxygen separator and hydrogen separator level must be controlled to prevent overfill. They must also prevent hydrogen and oxygen carry-under from entering the water system. Operators need a level measurement solution like the Rosemount 5300 Guided Wave Radar Level Transmitter that helps ensure reliable measurements and safe operation of the separation process. The Rosemount 5300 guided wave radar transmitter is an ideal solution for monitoring separator level ensuring reliable and safe hydrogen production.