MPS™ Refrigerant Gas Sensor - S4
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- Meets UL 60335-2-40 & ASHRAE 15 requirements
- Wide environmental operating range with no cross-sensitivity to rapid T & RH changes
- No false positives
- Extremely fast response time
- Immune to poisoning
- 15+ year calibration interval
- 15+ year lifetime
- Built-in self-test for fail-safe operation
- Industrial and residential packaging options
- Third-party tested
- Available now for integration
- Temp Operating Range -40 to 75°C
- Humidity Operating Range 0 to 100% RH
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Description
MPS™ Refrigerant S4 Gas Sensor
by NevadaNano
by NevadaNano
Precise and dependable detection of A1, A2L, and A3 refrigerant gases commonly used in HVAC & Refrigeration applications
Features
- Gas Detected
A1> R410A, A2L> R32, R454A/B/C, R1234ze, A3> R290 (Propane)
- No field calibration
Immunity to saturation and poisoning and no field calibration eliminates the prohibitive cost of quarterly calibration trips & sensor replacements.
- Highly accurate gas detection
Resolution to 0.1% LEL with built-in environmental compensation for temperature, relative humidity, and pressure for near-zero false positives.
- Very wide operating range & self-testing capability
-40°C to 75°C operating range with up to 100% relative humidity. Built-In Self-Test (BIST) capability continuously evaluates the system to ensure it is operating to specification.
- 15-year sensor life
Unparalleled 15-year sensor life means low total cost of ownership and ensures uninterrupted monitoring.
- Certified as Intrinsically Safe
Class I Div 1 / Zone 0 sensor certified to FM, ATEX, and IECEx, and compliant with sensor requirements in UL60335‑2‑40, UL/IEC 60079‑29‑1, and UL/IEC 60335‑2‑40.
| Feature | MPS™ A1 Sensor | MPS™ A2L Sensor | MPS™ A3 Sensor |
| No required field calibration | ✔ | ✔ | ✔ |
| Immune to poisoning | ✔ | ✔ | ✔ |
| Immune to saturation | ✔ | ✔ | ✔ |
| UART + Analog Out | ✔ | ✔ | ✔ |
| 15-year sensor life | ✔ | ✔ | ✔ |
| Power-On-Self-Test (POST) | ✔ | ✔ | ✔ |
| Built-In-Self-Test (BIST) | ✔ | ✔ | ✔ |
| Detects flammable gas during start-up | ✔ | ||
| Gas Detected | R-410A | R-32 R-454A R-454B R-454C R-1234ze |
R290 (Propane) |
| Applications | Comfort Cooling Residential HVAC |
Residential HVAC Heat Pumps |
Commercial Refrigeration Residential HVAC Heat Pumps |
| Range | Static Conditions: 1,700-130,000 ppm Dynamic Conditions: 5,100-130,000 ppm |
R-32: 5-100 %LFL R-454A 5-100 %LFL R-454B: 9-100 %LFL R-454C: 8-100 %LFL R-1234ze 9-100 %LFL |
5-100 %LEL |
| Resolution | 130 ppm | 0.1% LEL | 0.1% LEL |
| Certifications | N/A | UL60335-2-40 (2022) Annex LL Compliant ATEX/IECEx Certified |
UL/IEC 60079-29-1 Annex A Compliant UL/IEC60335-2-40 (2022) Compliant ATEX/IECEx Certified |
| Power consumption | 29mW | 29mW | 27.3 mW |
| Supply voltage | 3.3 - 5.0 ±5% VDC | 3.3 - 5.0 ±5% VDC | 3.0 - 5.0 ±5% VDC |
The MPS™ Comes in Two Form Factors
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S4
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Mini
Third Party Validated Performance
Multiple parties have completed performance testing of NevadaNano’s HVAC-R sensors. This includes extensive testing at NevadaNano, thorough evaluation by our customers, and evaluation by the Air-Conditioning, Heating and Refrigeration Technology Institute (AHRTI), a product test lab that serves over 300 HVAC-R manufacturers. NevadaNano’s sensor was the only sensor of eleven sensors evaluated by AHRTI that met all the test criteria required for detecting A2L refrigerant leaks. In all, AHRTI evaluated twenty-eight criteria, evaluating the sensor against the following specs:
- IEC 60335-2-40 (International Electrotechnical Commission).
- UL/CSA 60335-2-40 (Underwriters Lab and Canadian Standards Association).
- ASHRAE 15 (American Society of Heating, Refrigerating and Air-Conditioning Engineers).
- JRA Standard 4068T (Japan Refrigeration and Air Conditioning Industry Association).
Industries and Applications
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HVAC-R
- Residential Air Conditioning – all types
- Commercial Air Conditioning
- Industrial Air conditioning
- Data Center cooling
- Server farm cooling
- Hospitals and health care
- Educational Institutions
- Grocery / Food Retail
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Heat Pumps and VRF/VRV Air Conditioning
- Commericial and Residential Air Conditioning
- Offices
- Multi Residency
- Residential Units
- Care Homes
- Public Buildings
- Hotels
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Refrigeration / Cold Chain
- Food Production and Processing
- Cold Storage
- Pharmaceutical Units
- Data Centers
- Process Cooling Supermarket Display Cases – Food Retail
- Vending Machines
Consider the MPS™ Sensor Evaluation Kit
Test our accurate, calibration-free sensor technology before scaling up.
- Filter by Refrigerant
- R410A
- R32
- R454A
- R454B
- R454C
- R744 (Carbon dioxide)
- R717 (Ammonia)
- R50 (Methane)
- R170 (Ethane)
- R290 (Propane)
- R600 (Butane)
- R600a (Isobutane)
- R601(Pentane)
- R1270 (Propylene)
- R1150 (Ethylene)
- Applications
- BrandsNevadaNano®
- TechnologyMPS™
- TypeSensing Element