Hydrogen Detectors - H2-BF / H2-BF+

  • 3-electrode electrochemical hydrogen sensor
  • PPM-level hydrogen detection
  • Available in standard (H2-BF) and IST-enabled (H2-BF+) versions
  • Integrated Smart Technology with onboard memory and temperature sensor (H2-BF+)
  • Plug-and-play operation with stored calibration and identification data
  • Low cross-sensitivity to common interfering gases

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The H2-BF / H2-BF+ Hydrogen Sensor is a 3-electrode electrochemical hydrogen sensor designed for ppm-level detection of hydrogen gas across a wide range of applications, including portable gas detectors, fixed gas detection systems, industrial safety, environmental monitoring, and process control.

The sensor is available in two versions: the standard H2-BF and the H2-BF+ with Integrated Smart Technology (IST). The H2-BF+ incorporates an onboard memory chip and temperature sensor, enabling storage of calibration, specification, and identification data for plug-and-play operation and improved temperature compensation.

Use Cases

  • Portable gas detectors
  • Fixed gas detection systems
  • Industrial safety monitoring
  • Environmental air quality analysis
  • Process control applications

Capabilities

  • Detection range: up to 5,000 ppm H₂ (performance range)
  • Response time (t90): <55 seconds
  • Resolution: <0.8 ppm equivalent noise
  • Sensitivity: 10–25 nA/ppm
  • Good response down to ~5 ppm hydrogen (leak detection capability) — as shown in performance graphs (page 3)
  • Operating life: >24 months
  • I²C communication and digital data handling (H2-BF+)
Alphasense Limited

Alphasense provides high-performance gas sensing technology critical for safety and leak detection across the hydrogen value chain. Their specialized sensors—including electrochemical cells for ppm-level detection and Pellistor (Catalytic Bead) sensors for LEL monitoring—are designed to detect hydrogen leaks in production facilities, storage areas, and fuel cell enclosures. By offering miniaturized, low-power components with fast response times, Alphasense enables OEMs to build reliable, portable, and fixed safety systems that protect personnel and infrastructure from hydrogen's high flammability.

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