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Hydrogen sensing — safer & faster

Real-time detection below 0.2 ppm, < 1 s response and ultra-low power

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Ultra-fast response

Detects hydrogen within milliseconds — ideal for critical safety applications.

Ultra-low power

Operates at ≤ 2 µW — perfect for battery-free wireless nodes.

Parts-per-billion sensitivity

Accurate from 192 ppb up to 100 % H₂, far surpassing conventional sensors.

Long-term stability

> 646-day lifetime demonstrated without recalibration.

Exceptional selectivity

Virtually no cross-sensitivity — > 10 000 × stronger response to H₂ than to common VOCs and permanent gases.

Technical specifications

Detection range 192 ppb – 100 % H2
Response time (T90) < 1 s (millisecond onset)
Power consumption ≤ 2 µW @ 0.8 V bias
Selectivity ratio > 10 000 × H2/VOC
Lifetime > 646 days drift-free

Customer benefits

Battery-free deployments

HydroSense draws micro-watts, enabling energy-harvesting sensor networks where conventional heated sensors would drain batteries in weeks.

True trace-to-bulk coverage

One sensor handles eight orders of magnitude in concentration — no need to mix separate ppm and %H₂ detectors.

Intrinsically safe in Zone 0

No heater or spark risk, making HydroSense suitable for ATEX Zone 0 environments where catalytic or MOS sensors are prohibited.

Install-and-forget reliability

Multi-year drift-free operation slashes recalibration visits and downtime, lowering total cost of ownership.

Possible applications

Electrolyser safety

Instant leak detection protects equipment and staff.

Hydrogen drones

Lightweight sensors keep UAVs within payload limits.

Smart homes

Continuous monitoring for domestic fuel-cell boilers.

Pipeline monitoring

Distributed sensor networks along hydrogen corridors.

How it works

A platinum electrode catalytically disaccociates H2 into atomic hydrogen; the H atoms scavenge the oxygen species that p-dope the organic semiconductor, instantly de-doping it and causing a sharp fall in conductivity, which can be monitored at sub-1 V bias. Once H2 is removed, ambient oxygen re-dopes the film, enabling thousands of repeat cycles without drift.

The reversible p-doping / de-doping cycle allows thousands of repeat tests without drift.

Let’s talk hydrogen safety

Whether you’re designing fuel-cell systems or retrofitting infrastructure, we can help ensure you deploy hydrogen safely.

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