H2-Alarm device

Compatible with the H2-CNI 4-20mA-I and H2-meTCD 4-20mA or H2-CNI 0-10V-I and H2-meTCD 0-10V

The H₂ alarm module reliably monitors multiple hydrogen sensors and provides clear, configurable alarm signaling to ensure early detection and operational safety.

Key Features & Benefits


  • Monitors up to four hydrogen sensors (H2-CNI 0–10V-I, H2-meTCD 0–10V) for reliable multi-point safety monitoring


  • Independent power supply  per sensor ensures stable operation and high system reliability


  • Three-color 24 V LED warning light control enables clear visual signaling of normal operation, pre-alarm, and main alarm states


  • Individually configurable alarm thresholds allow application-specific safety settings


  • Tri-color status LEDs per sensor provide immediate visual feedback on sensor and system status


  • Potential-free alarm outputs via D-Sub 15 enable easy integration with external control and safety systems


  • Automatic power redundancy with main and auxiliary 24 V supplies ensures uninterrupted operation in case of power failure


  • LED-indicated power switchover with potential-free output enhances system transparency and fault diagnostics


  • Visual monitoring of sensor heating currents supports quick functional checks of H2-CNI sensors


  • Robust anodized aluminum housing designed for long-term industrial use


  • DIN rail mounting (DIN EN 60715 TH 35) allows fast and secure installation in control cabinets


  • Front-mounted connectors and illuminated on/off switch simplify installation, wiring, and operation


  • Micro-USB interface with SensorControl software enables intuitive configuration and diagnostics


  • Expandable via optional relay card for extended alarm and control functionality

Need a custom solution?


We offer customization options on existing sensors as well as custom

development of completely new sensors or features.


Tell us about your needs and we'll get back to you!

Need a custom solution?


We offer customization options on existing sensors as well as custom

development of completely new sensors or features.


Tell us about your needs and we'll get back to you!