

NEW! HY-GUARD™ Hydrogen Area Monitor
Hydrogen Area Monitor
- No false alarms
- Continuous self-calibration that verifies sensor performance throughout its
operational life - Helps facilities stay compliant with the International Fire Code (IFC) and
NFPA 855 - Multiple mounting choices including ceiling and cabinet mounting options
- Flexible communication options including dry potential-free contacts, 4-20
mA analog, and Modbus RTU (RS-485) - Lasts the service life of the batteries
Applications
The HY-GUARD™ hydrogen monitoring system tackles critical safety issues for standby power battery setups by introducing the industry’s first hydrogen sensor specifically designed for most battery applications.
Key Advantages
- True Safety Assurance: HY-GUARD™ self-verification eliminates false security
through continuous self-verification - Zero Maintenance: Long sensor life and no calibration required over the life
of the instrument - Flexible Configuration: Modular design allows selection of needed required
capabilities, ranging from relay outputs to advanced communication protocols - Superior Reliability: Proven sensor technology without the drift, false
alarms, and premature failures common in catalytic and metal oxide sensors - Standards-drive Development: Designed to meet stringent fire code, including
NFPA 855, the global standard for energy storage safety
Applications
- Standby Power Battery Rooms
- Lead-Acid Battery Installations
- NiCad Battery Systems
- Battery Cabinets
- Telecommunications Battery Backup
- Data Center Standby Power
- Emergency Power Systems
- Utility Substations
Technical Information
| Physical |
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| Environmental |
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| Power |
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| Communications |
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1. The response time is the time until the measured H2 exceeds 1% when transitioning from air to 3% H2 /Air
Note: HY-GUARD supports both AC and DC power inputs. AC is used as the primary source by default. In the event of AC loss, HY-GUARD will automatically switch to DC when AC and DC are powered by separate power sources
Certifications
| Compliance & Certification |
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| Applicable Standards |
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2. The HY-GUARD was designed for and passed pre-conformance testing per the requirements of UL 61010-1 and CSA C22.2 No. 61010-1, and is currently undergoing formal certification by an agency
HY-GUARD Models
| Model | Communication |
|---|---|
| 8111 | Modbus RTU, 4-20 mA analog, Dry Contacts 1 & 2% H2, Fault Indicator |
| 8110 | 4-20 mA analog, Dry Contacts 1 & 2% H2, Fault Indicator |
| 8101 | Modbus RTU, Dry Contacts 1 & 2% H2, Fault Indicator |
| 8100 | Dry Contacts 1 & 2% H2, Fault Indicator |



