A hydrogen sensor is a device designed to detect the presence and concentration of hydrogen gas in the environment. Hydrogen sensors are critical for various applications, including safety monitoring in industrial environments, automotive applications (particularly in hydrogen fuel cell vehicles), and in research settings. ### Key Features of Hydrogen Sensors: 1. **Detection Method**: Hydrogen sensors can utilize various detection principles, including: - **Electrochemical sensing**: Uses a chemical reaction to generate a current proportional to hydrogen concentration.
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