Overview
Hospitality Enviro Tech’s duct-mounted CO₂ transmitter is designed for HVAC and environmental monitoring applications. Using NDIR sensing technology, it delivers accurate and stable carbon dioxide measurements directly in duct systems. With multiple output options (0–10V, 0–5V, 4–20mA, RS485), it easily integrates into building management systems for air quality monitoring, ventilation control, and greenhouse environments.
Features
- NDIR technology for high accuracy and stability
- Duct probe design for direct installation in air ducts
- Multiple outputs: 0–10V, 0–5V, 4–20mA, RS485 (optional)
- Long-term drift stability for continuous monitoring
- Compatible with HVAC, smart building, and agricultural systems
- Wide supply voltage support (DC 24V)
Technical Specifications
| Specification | Details |
| Detecting Gas | Carbon dioxide (CO₂) |
| Detection Method | Non-dispersive infrared (NDIR) |
| Mounting Type | Duct Type |
| Output Options | 0–10V / 0–5V / 4–20mA / RS485 |
| Power Supply | DC 24V |
| Accuracy | ±3% FS (typical) |
| Lifespan | ≥5 years |
| Dimensions | Probe style (varies per duct installation) |
| Weight | ~0.3 lb (135 g) |
| Working Temperature | -10~50℃ |
| Working Humidity | 15~95%RH |
| Storage Temperature | -20~80℃ |






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