Gas Sensor Modules
SRH-40
NDIR CO₂ Sensor SRH-40
- Model
- SRH-40
- Category
- Gas Detectors & Alarms › Gas Sensor Modules
Parameters: CO2
IndustriesIndustrial Process
Measurement PrincipleNDIR
Overview
SRH-40 is a dual-beam NDIR CO2 sensor for 0-40% ranges, ideal for grain storage and silo-bag monitoring as well as smart agriculture, industrial safety and gas drainage. It offers a shock-resistant IR source, mesh-filtered diffusion, linearized digital output and a standard 20 mm industrial size.
Key Features
- Silobag grain CO2 monitoring application
- Shock-resistant IR source available, diffused gas sampling via mesh to remove the dust
- With full range linearized and digital signal output
- Embedded temperature compensation and matrix calibration to ensure high accuracy
- Fast response
- High accuracy, high stability
- Easy to be integrated, no moving parts
- Standard industrial size (20 mm), to fit an existing detector
Measured Parameters
| Parameter | Measuring Range |
|---|---|
| CO2 | 0~40 %Vol |
Specifications
| Principle | NDIR |
|---|---|
| Measurement Gas | CO2 |
| Measurement Range | 0-40%Vol |
| Accuracy | 0-5%Vol: ≤±0.5%Vol; / 5%-40%Vol: ≤±10% of reading |
| Resolution | 0.01%Vol |
| Response Time | T90<25s |
| Output | UART_TTL (2.5-3.3V) |
| Working Condition | -25 ~ 55℃, 0~95%RH (non-condensing) |
| Storage Condition | -40 ~ 70℃, 0~95%RH (non-condensing) |
| Power Supply | 3.3~5.5V DC |
| Working Current | <40mA |
| Lifespan | >10 years |
| Dimension | Dia20*H16.6mm |
Applications
- Grain storage and silo-bag monitoring
- Smart agriculture and greenhouses
- Industrial safety
- Gas drainage pipe monitoring
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