MH-441D NDIR Infrared Refrigerant Sensor | High Sensitivity | HVAC & Industrial Safety | Long Lifespan
O MH-441D infrared refrigerant sensor is a compact, high-performance NDIR (Non-Dispersive Infrared) gas sensor designed for detecting refrigerant gases like R32, R454B, R410A, and R134A. It features excellent selectivity, fast response, long lifespan, and stable performance, making it ideal for HVAC, industrial safety, and environmental monitoring applications.
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Description
MH-441D is an NDIR-based refrigerant gas sensor that ensures precise detection of various refrigerants. It integrates temperature compensation, ensuring accurate and stable readings across different environments. The sensor is resistant to poisoning and water vapor interference, allowing it to directly replace traditional catalytic gas sensors.
Key Features
✅ High Sensitivity & Accuracy – Detects refrigerants with high resolution
✅ Fast Response Time – T90 < 30 seconds for rapid gas detection
✅ Longa vida útil – More than 5 years of reliable operation
✅ Multiple Output Options –Suporta UART and analog voltage output
✅ Temperature Compensation – Ensures accurate measurements
✅ Intrinsically Safe Design – Power and communication terminals designed for safety
✅ Wide Detection Range – Covers 0~5% Vol refrigerant concentration
Aplicativos
📌 HVAC & Refrigeration Systems – Leak detection for air conditioning and refrigeration units
📌 Indoor Air Quality Monitoring – Detecting refrigerant leaks in residential and commercial spaces
📌 Industrial Process Control & Safety – Monitoring refrigerant gas levels in factories and storage facilities
📌 Agriculture & Animal Husbandry – Environmental monitoring in farms and greenhouses
Technical Specifications
General Specifications
| Model No. | MH-441D |
|---|---|
| Detection Gas | Refrigerants (R32, R454B, R410A, R134A) |
| Detection Range | 0~5.00% Vol |
| Working Voltage | 3.6~5V DC (Requires safety barrier) |
| Average Current | < 85mA |
| Interface Level | 3.0V |
| Output Signal | UART (3.0V), 0.4~2.0V DC (Requires safety barrier) |
| Preheat Time | 3 min |
| Response Time | T90 < 30s |
| Working Temperature | -20 ~ 60℃ |
| Working Humidity | 0 ~ 95% RH (No condensation) |
| Dimensions | Φ20 × 22.4 mm |
| Weight | 35 g |
| Lifespan | >5 years |
| Protection Grade | IP54 |
Refrigerant Detection Performance
| Target Gas | Formula | Detection Range | Resolution | Accuracy | Relative Coefficient |
|---|---|---|---|---|---|
| R32 | CH₂F₂ | 0~5.00% Vol | 0.01% Vol | ±5% F.S (0.00%-1.00%) ±10% F.S (1.00%-5.00%) | 1.00 |
| R454B | CH₂F₂ (68.9%) + C₃H₂F₄ (31.1%) | 0~5.00% Vol | 0.01% Vol | ±5% F.S (0.00%-1.00%) ±10% F.S (1.00%-5.00%) | 0.91 |
| R410A | CH₂F₂ (50%) + C₂HF₅ (50%) | 0~5.00% Vol | 0.01% Vol | ±5% F.S (0.00%-1.00%) ±10% F.S (1.00%-5.00%) | 0.81 |
| R134A | C₂H₂F₄ | 0~5.00% Vol | 0.01% Vol | ±5% F.S (0.00%-1.00%) ±10% F.S (1.00%-5.00%) | 0.28 |
📢 Specifications are subject to change without notice. Please contact us for the latest updates before placing an order.
Additional information
| Aplicativos | HVAC, Industrial Process, Safety Monitoring |
|---|---|
| Detection Gas | R134a, R32, R410A, R454B |
| Output | Analog Voltage Signal, UART |
| Principle | NDIR |
| Product Type | Sensor |
Reviews
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