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MPS Refrigerant Gas Sensor

MPS Refrigerant Gas Sensor
Regular price $149.00 USD

POs or wholesale quantity discounts click here

The Nevada Nano MPS Refrigerant Gas Sensor accurately and reliably detects R-32, R-454b, R-1234yf, R-744, R-290, R-600 and many other refrigerant gases used in commercial and residential HVAC applications.

The secret to the sensors long life and low maintenance is MPS™ - Molecular Property Spectrometer technology. A MEMS transducer is mounted onto a PCB and open to ambient air. The presence of a flammable refrigerant gas causes changes in the thermodynamic properties of the air/gas mixture that are measured by the transducer, then processed by patent-pending algorithms to report accurate gas concentrations.

The MPS Refrigerant Gas Sensor has been configured to provide a robust, refrigerant-dedicated sensing solution like that can reliably recognize leaks over a long field life, in harsh, real-world environments with no servicing required.


  • Real time environmental compensation to rapid temperature & %RH changes
  • No false positives, immune to poisoning
  • Extremely fast response time
  • Built-in self-test for fail-safe operation
  • Industrial and residential packaging options
  • No field calibration or maintenance
  • Meets UL 60335-2-40 & ASHRAE 15 requirements
  • Life expectancy - 10+ Years

Models In Stock

  • MPS004-MN0505-00 - R-32 (A2L), Serial UART & Analog Output, 5 Pin Mini
  • MPS009-MN0505-00 - R-404A, Serial UART & Analog Output, 5 Pin Mini
  • MPS011-MN0505-00 - R-454 Blends, Serial UART Output, 5 Pin Mini
  • MPS999-MN0000-99 - Mini USB Evaluation Kit and Software

Special Order

  • MPS004-MN0501-00 - R-32 (A2L), Serial UART Output, 5 Pin Mini
  • MPS004-S40501-EX - R-32 (A2L), Serial UART Output, 5 Pin S4
  • MPS004-S40505-EX - R-32 (A2L), Serial UART & Analog Output, 5 Pin S4
  • MPS010-MN0501-00 - R-407A, Serial UART Output, 5 Pin Mini
  • MPS010-MN0505-00 - R-407A, Serial UART & Analog Output, 5 Pin Mini
  • MPS999-S40000-99 - S4 USB Evaluation Kit and software

Note: S4: Cylindrical footprint


  • Gas Type: Refrigerant Gases
  • MPS-A2L - R32, R454-Blends, 1234yf
  • MPS-A1 - R-404A, R-407A
  • MPS-A3 - R290 (propane)
  • LOD Range: 0-100%LEL, 400-2500ppm, 0-100%LEL
  • Measurement Ranges: 50-50,000ppm or 1,300 - 50,000ppm
  • Accuracy: 250ppm or 1,300ppm
  • Measurement Rate: 2s
  • Resolution: 0.1LEL, 1ppm w/ slow leak rate of 15ppm/min
  • Response Time (T90): <6s, <30s, <20s
  • Calibration Interval: No calibration required.
  • Warm-Up Time: 20s 
  • Operating Temperature Range: -40° to 75°C
  • Humidity: 0-100% RH
  • Pressure: 80 to 120 kPa
  • R/H and Temp Available?: Y / Y
  • Voltage Input: 3.3 - 5.0 ±5% VDC
  • Max Current: 8.9mA typical


  • Communication: UART / Analog Output
  • Digital: Y
  • Digital Input/Output: 4 or 5 pin


  • Dimensions: 16.6 mm (H) x 20.0 mm (L)
  • Weight: 8.0 , 0.5 grams
  • Body Material: Ultem PEI


  • Sensor Life Expectancy: > 10 years


  • UL60335-2-40 Ready ATEX Certified
  • UL60079-29-1 Ready ATEX Certified


  • 2 Years. See GasLab Terms and Conditions

Sensor Evaluation Kit

The Molecular Property Spectrometer™ Flammable Gas Sensor Evaluation Unit is a user friendly system developed for assessing flammable gas detection performance. The sensor connects to a provided PCB for communication with a PC (USB) or breakout to individual sensor signals (optional 5-wire harness). A quarter-turn plastic gas mask and housing is included to provide a sealed headspace above the sensor using a tube cap inlet and outlet.

Evaluation Kit part no. MSP999-MN0000-99

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"Swift response and shipment. The product is easy to setup and use. It is just what I was looking for."

- Shima Tomohiro

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