Hydrogen Sensors — Palladium Alloy Thin-Film DGA Technology
PAS DGA’s hydrogen sensors use proprietary palladium (Pd) alloy thin-film technology fabricated on MEMS micro-hotplates. Unlike electrochemical sensors that degrade over time or gas chromatography that requires consumables, our solid-state sensors provide maintenance-free operation for 10+ years with zero calibration drift.
DGA-200
Pd alloy thin-film H₂ sensor with integrated LoRa wireless (10+ km range). Optional IR-PAS multi-gas module. 1-2 ppm detection limit. Zero consumables. Ideal for offshore wind, remote substations, and distributed assets.
- H₂ Detection: 1-2,000 ppm
- Communication: LoRa + MODBUS + 4-20 mA
- Life: 10+ years, zero maintenance
DGA-300
Patented dual-mode architecture: resistive mode for 0.4%-100% H₂ range + MIS C-V mode for precision 1-2 ppm detection. PdOₓ anti-CO diffusion barrier. MODBUS RTU + 4-20 mA. Under 50 mW power. For OEM integration into monitoring platforms.
- H₂ Range: 1 ppm – 100%
- Dual Sensing Modes (R + C-V)
- Power: 12-24V DC, <50 mW
DGA-500
The proven workhorse for fleet-wide hydrogen monitoring. 5-5,000 ppm H₂ range. IP66-rated. 50+ countries deployed. Direct valve mount in under 1 hour on energized transformers. Lowest TCO in the industry with 5-year warranty.
- H₂ Range: 5-5,000 ppm
- Rating: IP66, Direct Valve Mount
- Deployment: 50+ Countries
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