MPS™ Methane Gas Sensor:
A Low-Power, Calibration-Free OEM CH4 Sensor
A low-power methane gas sensor engineered for commercial and industrial gas safety instruments — delivering calibration-free CH4 methane gas sensor performance with a 15-year sensor life and no field calibration required.
World-Class OEMs Integrate the MPS™ Methane Gas Sensor
THE MPS™ GAS SENSOR
Why Engineers Choose the MPS™ Methane Gas Sensor
Low Maintenance, High Accuracy, and Robust Performance
- No required field calibration
Immunity to poisoning and saturation eliminates the recurring calibration costs that make traditional methane gas sensors burdensome in hard-to-access locations like commercial HVAC installations and industrial natural gas infrastructure.
- TrueLEL™ Certified CH4 Detection
Resolution to 0.1% LEL with TrueLEL™ certification for methane — fully validated across the full -40°C to 75°C range and 0-100% relative humidity. Near-zero false positives across the variable conditions of commercial and industrial gas safety instruments.
- Wide Operating Range & Built-In Self-Test
-40°C to 75°C with up to 100% relative humidity — handles temperature extremes from cold outdoor installations to high-humidity mechanical rooms. Built-In Self-Test (BIST) continuously verifies sensor operation, critical for safety-certified methane gas detection instruments.
- 15-year sensor life
Outlasts the devices it protects. Critical for methane gas safety applications where sensor replacement in installed appliances, fixed gas detectors, and commercial monitoring systems 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+.
- Automatic Gas Classification
Beyond methane detection, the MPS™ automatically classifies the type of gas present — distinguishing methane from hydrogen and other flammable gases. This gives OEM methane gas detector builders a meaningful safety advantage over single-gas detection systems.
- Ultra-Low Power — 1.35mW
Purpose-built for battery-powered portable gas detectors, fixed gas safety devices, and area monitors where power budget is critical.
MPS™ Methane Gas Sensor Models
| 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.
CH4 Detection & Measurement Accuracy
Precision
The MPS™ methane gas sensor delivers resolution to 0.1% LEL — detecting CH4 concentrations well below dangerous thresholds. TrueLEL™ certification for methane 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 methane concentrations rapidly — critical in enclosed spaces like utility rooms, commercial kitchens, and mechanical spaces where natural gas can accumulate quickly.
Methane LEL Measurement Range
Methane has a flammability range of 5% to 15% by volume in air, with a lower explosive limit (LEL) of approximately 50,000 ppm. The MPS™ measures methane gas sensor output accurately across the full 0–100% LEL range, with built-in compensation for temperature, pressure, and humidity ensuring reliable readings regardless of environmental conditions.
