MPS™ 5.0 FLAMMABLE GAS SENSOR
Catalytic Bead Sensor Replacement — A Proven Drop-In Alternative
The MPS™ 5.0 is a proven catalytic bead sensor replacement engineered for OEMs — delivering modern gas detection performance without changing your existing device design.


Catalytic Bead Sensor Limitations
OEMs designing gas detection instruments encounter persistent reliability challenges tied to catalytic bead sensor and bead sensor technology, including:
- Poisoning occurring when the sensor comes into contact with higher hydrocarbons, alcohols, ketones, esters, hydrogen sulfide and other sulfur containing compounds.
- Masking occurring when a non-target gas triggers a sensor, obscuring the true reading of the target gas.
- Saturation occurring when the sensor is exposed to a concentration of flammable gas that exceeds its designed measurement range appear to be working properly, yet fail to detect dangerous levels of gas, representing a significant safety risk.
- Frequent calibration required to maintain safety-critical accuracy, as they are prone to sensitivity drift, degradation over time.
- Single-gas calibration means no visibility to other flammable gases that may be present.
The MPS™ 5.0 Flammable Gas Sensor is a proven pellistor replacement flammable gas sensor that eliminates many of the fundamental limitations of catalytic bead technology.
MPS™ 5.0 FLAMMABLE GAS SENSOR
A Proven Pellistor Alternative—Without Changing Your Device Design
When used in analog-only mode, the MPS™ 5.0 flammable gas sensor functions as a drop-in catalytic bead gas sensor replacement — eliminating the fundamental limitations of bead sensor technology while delivering modern performance benefits
- Inherently poison-resistant design eliminates failure from common contaminants
- No calibration required over the sensor’s 15+ year lifetime
- Accurate %LEL output across a broad spectrum of flammable gases with one factory calibration
- Intrinsically safe flammable gas sensor, certified for hazardous environments
- IEC 60079-29-1 compliant gas sensor, suitable for global safety standards
The MPS™ 5.0 Flammable Gas Sensor is a proven pellistor replacement flammable gas sensor that eliminates many of the fundamental limitations of catalytic bead technology.
A Configurable Analog Output to Mirror Your Existing Catalytic Bead Sensor
| Analog Out Parameter | Standard Output | Custom Configurable Output |
|---|---|---|
| 0 to 100 %LEL | 0.4 to 2.0V | 0.1 to 2.4V |
| -15 to 0 %LEL | 0.16 to 0.4V | 0.1 to 2.4V |
| 100 to 110 %LEL | 2.0 to 2.16V | 0.1 to 2.4V |
| Sensor Startup | 0.1V | 0.1 to 2.4V |
| Sensor Status | 0.1V | 0.1 to 2.4V |
| Sensor Warning | 2.3V | 0.1 to 2.4V |
| Sensor Fault | 2.4V | 0.1 to 2.4V |
| Warm-up Phase 1 Time | 31 seconds | Not configurable |
| Warm-up Phase 2 Time | 32 seconds |
> 32 seconds (does not include initialization) |
Video Demonstration:
Poison-Resistant Gas Sensor
In this video demonstration, we’ll show how NevadaNano’s MPS™ Flammable Gas Sensor outperforms Pellistors when exposed to common silicone-containing compounds.
Contact Our Engineering Team
Our team would be happy to walk you through whether the MPS 5.0 gas sensor is the right sensor for your specific needs.