MPS™ Hydrogen Gas Sensor & H2 Detection for Industrial Safety

A TrueLEL™ certified H2 sensor delivering accurate, calibration-free hydrogen gas detection for BESS, industrial safety, and OEM integration — with a 15-year sensor life and no field calibration required.

MPS™ S4 5-pin flammable gas sensor for OEM integration — MPS™ S4 5-pin

MPS™ Series 4 3-pin LEL sensor for Catalytic Bead drop-in replacement — MPS™ S4 3-pin

MPS™ Mini combustible gas sensor — MPS™ Mini

World-Class OEMs Integrate MPS™ Hydrogen Sensors

THE MPS™ GAS SENSOR

Why Engineers Choose the MPS™ H2 Sensor

Low Maintenance, High Accuracy, and Robust Performance

No field calibration
Immunity to poisoning and saturation eliminates the recurring calibration costs critical for hydrogen sensor deployments in hard-to-access locations — BESS enclosures, underground mining environments, and remote hydrogen fueling stations.

TrueLEL™ Certified H2 Detection
Resolution to 0.1% LEL with TrueLEL™ certification for hydrogen — fully validated across the full -40°C to 75°C range and 0-100% relative humidity. Near-zero false positives in the variable conditions of industrial hydrogen safety applications.

Wide Operating Range & Built-In Self-Test
-40°C to 75°C with up to 100% relative humidity — handles the thermal extremes of BESS enclosures and outdoor hydrogen fueling infrastructure. Built-In Self-Test (BIST) continuously verifies sensor operation, critical for safety-certified hydrogen detection instruments.

15-year sensor life
Outlasts the infrastructure it protects. Critical for hydrogen safety applications where sensor replacement in BESS enclosures, fueling stations, and industrial facilities carries significant cost and operational disruption.

Certified as Intrinsically Safe
Class 1, Div. 1 and Zone 0 certified and global safety certifications such as FM, CSA, IECEx, ATEX, EN50271 and IP65+.

Earliest Warning of Battery Thermal Runaway
Beyond hydrogen detection, the MPS™ identifies DMC and EMC electrolyte vapors — the gases produced at the earliest stage of lithium battery off-gassing, before thermal runaway develops. This gives OEM instrument builders a meaningful safety advantage over hydrogen-only detection systems.

Ultra-Low Power — 1.35mW
The MPS™ 6.0 delivers hydrogen gas detection at just 1.35mW — purpose-built for battery-powered portable gas detectors, lone worker safety instruments, and deployable area monitors where battery life is critical.

MPS™ Hydrogen Sensor Models

Feature	MPS™ 3.0 View Details	MPS™ 4.0* View Details	MPS™ 5.0 View Details	MPS™ 6.0 ULP View Details
Feature	MPS™ 3.0 View Details	MPS™ 4.0* View Details	MPS™ 5.0 View Details	MPS™ 6.0 ULP View Details	No required field calibration
Immune to poisoning
Immune to saturation
TrueLEL™ multi-gas detection
15-year sensor life
Power-On-Self-Test (POST)
Built-In-Self-Test (BIST)
UART Digital Output
Analog Data Output
Detects flammable gas during start-up
60079-29-1 Ed. 2.1 Annex A compliant
Certified to EN 50271
Includes watchdog timer
Power consumption	29mW	29mW	27.3 mW	1.35mW
Supply voltage	3.3 - 5.0 ±5% VDC	3.3 - 5.0 ±5% VDC	3.0 - 5.0 ±5% VDC	3.0 - 5.0 ±5% VDC

* MPS™ 4.0 sensors will cease production at the end of 2026.

Hydrogen Gas LEL Detection & Measurement Accuracy

Precision

The MPS™ hydrogen sensor delivers resolution to 0.1% LEL — detecting hydrogen concentrations well below dangerous thresholds. TrueLEL™ certification for hydrogen means the sensor has been fully validated to deliver accurate %LEL measurements across all rated environmental conditions including the full -40°C to 75°C temperature range and 0-100% relative humidity.

Response Speed

With a T90 response time of under 20 seconds, the MPS™ detects rising hydrogen concentrations rapidly — critical in enclosed spaces like battery rooms and BESS enclosures where hydrogen can accumulate quickly due to its low molecular weight and high diffusivity.

Hydrogen LEL Measurement Range

Hydrogen has one of the widest flammability ranges of any gas — 4% to 75% by volume in air, equivalent to approximately 40,000 ppm at the lower explosive limit. The MPS™ measures hydrogen concentration accurately across the full 0-100% LEL range, with built-in compensation for temperature, pressure, and humidity ensuring accurate readings regardless of environmental conditions.

APPLICATIONS

Applications for the MPS™ Hydrogen Sensor

The MPS™ Hydrogen Sensor is ideal for OEM Integration in portable and fixed gas detectors and area monitors.

Battery Energy Storage Safety (BESS)

The MPS™ hydrogen sensor detects H2 produced during battery off-gassing and thermal runaway events — providing the earliest possible warning before dangerous concentrations develop. Ideal for BESS enclosures, EV charging facilities, and battery room monitoring.

Hydrogen Production & Storage

Rapid and accurate H2 gas detection for electrolyzers, hydrogen generation facilities, and storage systems.

Hydrogen Fueling Stations

Hydrogen gas detection at fueling station dispensers, compressors, and storage areas.

Industrial Processing & Refining

Drilling rigs, offshore platforms, pipelines, compressor stations, refineries, and storage facilities, where early detection protects personnel, assets, and operations.

EV & Fuel Cell Vehicles

Hydrogen leak detection in fuel cell vehicles, charging infrastructure, and battery-powered construction equipment

Mining Equipment Safety

H2 monitoring in underground environments where ventilation is limited and ignition sources are present.