HY-GUARD stand alone hydrogen monitor.
Safety at battery charging stations and hydrogen applications.
Compact standalone hydrogen detection module with built-in signaling. Hydrogen selective.
Continuous self-calibration: Every 12 hours throughout the long life (>10 years) of the sensor.
No calibration gases, bump tests, or site visits required. Provides alerts if sensor performance deteriorates.
All-in-one design: Integrated, compact solution eliminates external modules, redundant wiring, and complex pipe installations.
Tailor-made for battery applications: Specially designed for emergency power systems.
Modular options support specific requirements without paying for unnecessary features.
Proven technology: Delivering H2scan's industry-leading hydrogen detection technology, refined over 20 years in utility and energy applications.
Flexible mounting options: Easy installation with standard mounting options.

Up to four Hy Guard hydrogen sensors can be connected to the Hy Sight display/controller, allowing H2 concentrations to be read directly.

Important Value Points For HY-GUARD
- All-In-One Unit
- Continuous Monitoring and Calibration
- Long Lifespan
- No Maintenance or Replacement Parts
- Self-Calibrating
- Easy to Install
- No False Alarms
- Communication Options (Dry Contact, Modbus, Analog Output)
- AC and DC inputs
- Audible Alarm
- Various Mounting Options
- Cost Competitive
Specifications
| H2 Range: | 0.4 - 2% |
|---|---|
| Accuracy: | +- 0.3% H2 |
| Response Time: | 50 to 70 sec |
| Sensor detection range: | 0.4 - 5.0% |
| ConnectorType: | AC : Relay 1%, Relay 2% DC : RS485, 4-20mA |
| Dimensions: | 132,5 x 130,5 x 52,9 mm |
| Input AC: | 85 to 264 VAC |
| Input DC: | 16 is 60 VDC |
| Buzzer: | 83 db |