Hydrogen Leakage Sensor - Marquardt

Marquardt GmbH

Hydrogen Leakage Sensor - Marquardt

The H2 Leakage Sensor is a compact multi-sensor solution for fast and reliable hydrogen leak detection.
In addition to hydrogen concentration, the sensor monitors temperature, humidity and ambient pressure, supporting safe and reliable operation of fuel cells, electrolyzers, hydrogen-powered vehicles and stationary hydrogen systems.

Hydrogen Leakage Sensor - Marquardt

The H2 Leakage Sensor is designed for reliable monitoring of hydrogen systems and early detection of potential hydrogen leaks. The sensor measures hydrogen concentrations from 0 to 4 vol. % H2, with an extended measurement range of up to 16 vol. % H2.
Its MEMS-based sensing principle uses thermal conductivity to provide fast and accurate hydrogen concentration monitoring with low cross-sensitivity to other gases. With a hydrogen response time of less than three seconds, the sensor enables rapid detection of hydrogen leaks.
In addition to hydrogen concentration, the sensor measures temperature, humidity and ambient pressure. This combines multiple relevant environmental parameters in one compact sensor solution and provides additional data for safety functions and optimized system control.
With protection classes up to IP67/IP6K7, the H2 Leakage Sensor is designed for demanding automotive and industrial environments. CAN, LIN, PWM and analog outputs enable flexible integration into different system architectures.
The sensor is suitable for a wide range of hydrogen applications, including fuel cells and electrolyzers, hydrogen-powered vehicles, hydrogen storage installations, stationary energy systems and industrial hydrogen infrastructure.

Key features

Fast and reliable hydrogen leak detection
Measurement range from 0 to 4 vol. % H2
Extended measurement range up to 16 vol. % H2
Hydrogen response time of less than 3 seconds
MEMS-based hydrogen detection
Low cross-sensitivity to other gases
Integrated temperature, humidity and pressure measurement
Protection classes up to IP67/IP6K7
Flexible integration via CAN, LIN, PWM or analog outputs
Energy-efficient operation with low-power and sleep modes
Suitable for fuel cells, electrolyzers, hydrogen vehicles and stationary systems

Contact us

Interested? Please contact Marquardt by filling in the RFQ or Inquiry form.

Marquardt GmbH

Founded in 1925 and headquartered in Rietheim-Weilheim, Germany, the family-owned company Marquardt is one of the world's leading manufacturers of mechatronic switching and operating systems. The mechatronics special-ist's products - including operating components, vehicle access, driving author-ization and battery management systems for electric vehicles - are used by many well-known customers in the automotive industry. Marquardt systems can also be found in household appliances, industrial applications and power tools. The company employs more than 9,000 people worldwide across 21 lo-cations on four continents. Revenue in the 2025 financial year amounted to just over 1.4 billion euros. Each year, Marquardt invests around ten percent of its revenue in research and development.

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