NevadaNano MPS Extended Range Methane Emissions Sensor

Calibration-Free Open-Air Methane Detection for OEM Emissions Monitoring Devices

The NevadaNano MPS™ Extended Range Methane Emissions Sensor is a low-power OEM sensor engineered for open-air methane gas emissions detection, measuring CH4 concentrations from 50 to 1,000,000 ppm with no field calibration required over its full operating lifetime. Available in two models — the MPS™ Extended Range and the MPS™ Extended Range Low Power — it is designed for integration into battery-powered and solar-powered monitoring devices deployed across oil and gas, industrial, landfill, and agricultural environments.

Conventional methane detection technologies carry significant ongoing maintenance burdens: periodic field calibration visits, susceptibility to poisoning by co-present gases such as hydrogen sulphide, and power demands that limit deployment in remote, off-grid locations. In oil and gas environments particularly, where H2S co-exposure is common and sites may be difficult or costly to access, these limitations translate directly into higher programme costs and greater risk of data gaps between inspections. The MPS™ Extended Range Methane Emissions Sensor is inherently poison-resistant, validated against 1,200 ppm-hours of H2S exposure, and also validated against siloxanes, NO2, HCN, SO2, Cl2, and NH3 — removing poisoning as a failure mode entirely. nevadanano

In field testing, the sensor detected methane emitted at 2 standard cubic feet per hour at distances of up to 10 metres, with near-zero false positives over weeks of continuous outdoor operation. Both models share a 50–1,000,000 ppm detection range, intrinsic safety certification for Class I Division 1 (FM, CSA) and Zone 0 (ATEX, IECEx), and a 15-year sensor life. The Low Power model delivers 15 mW average power consumption with a 4-second self-test cycle, while the standard model operates at 29 mW average with a 2-second self-test cycle. Both output via a 5-pin UART digital interface requiring no additional signal conditioning electronics. Note: this sensor is designed for open-air emissions detection and is not suited for safety applications or for detection of gradually accumulating concentrations in confined or poorly ventilated spaces. nevadanano

The NevadaNano MPS™ Extended Range Methane Emissions Sensor gives OEM device manufacturers a calibration-free, poison-resistant, low-power foundation for open-air methane emissions monitoring across some of the most demanding industrial environments in the world.

The Two MPS™ Extended Range Models

MPS™ Extended Range Low Power — 15 mW average power consumption; 4-second self-test cycle; FM, CSA, IECEx, ATEX certified; 50–1,000,000 ppm detection range; suited to battery and solar-powered remote deployments
MPS™ Extended Range — 29 mW average power consumption; 2-second self-test cycle; FM, CSA, IECEx, ATEX certified; 50–1,000,000 ppm detection range; suited to applications requiring faster self-test cadence

Typical Features

Open-air CH4 detection from 50 to 1,000,000 ppm
No field calibration required for 15+ years of operation
H2S poison-resistant; validated against H2S, siloxanes, NO2, HCN, SO2, Cl2, and NH3
Ultra-low power: 15 mW average (Low Power model) / 29 mW average (standard model)
Built-in self-test every 2–4 seconds for continuous fail-safe verification
Intrinsically Safe: Class I Div. 1 (FM, CSA) and Zone 0 (ATEX, IECEx) certified
Operating range: -40°C to 75°C, 0–100% relative humidity, 80–120 kPa
5-pin UART digital output (3.3 V logic, 38,400 baud) — no signal conditioning required

Typical Applications

Oil and gas: wellheads, tank batteries, compressor stations, pipelines, and separator facilities
Industrial perimeter and area emissions monitoring
Landfill gas collection system monitoring and climate reporting
Anaerobic digestion, biogas, and wastewater treatment facility monitoring
Surface and near-surface mining methane detection
Agricultural and livestock emissions monitoring and reporting