Dwyer CDT-2N40 CO2 Gas Sensor | CO2 and Temperature Sensor for HVAC Systems

The Dwyer CDT-2N40 CO2 gas sensor accurately monitors CO2 concentration and temperature. Ideal for HVAC and BMS systems, it ensures healthy indoor air and optimized energy efficiency.

Dwyer CDT-2N40 CO2 Gas Transmitters– The Smart Solution for Indoor Air Quality Control

In modern buildings, maintaining good indoor air quality is essential for comfort, health, and productivity. The Dwyer CDT-2N40 CO2 gas sensor is designed to accurately measure carbon dioxide concentration and temperature in enclosed environments. It’s an ideal solution for HVAC and BMS systems used in offices, schools, hospitals, and commercial centers where real-time air monitoring and control are required.

1. Key Features of the Dwyer CDT-2N40

• Dual measurement of CO2 and temperature: Monitor two key environmental parameters with a single device, saving cost and installation space.

• Advanced NDIR sensing technology: Ensures high accuracy, long-term stability, and reliable operation over time.

• Clear LCD display: Shows real-time CO2 (ppm) and temperature readings for easy on-site monitoring.

• Compact and modern design: Suitable for wall-mount installation in offices, classrooms, or meeting rooms.

• Flexible output signals: Supports both 0–10V and 4–20mA outputs, allowing seamless integration with HVAC controllers, BMS, or PLC systems.

2. Applications of the Dwyer CDT-2N40 CO2 Gas Sensor

The CDT-2N40 is widely used in indoor air quality monitoring for various environments:

• Schools and training centers: Maintain healthy air levels to improve focus and reduce fatigue among students.

• Offices and commercial buildings: Optimize HVAC operation based on real-time CO2 data for better comfort and energy savings.

• Hospitals and clinics: Keep air quality within safe levels for patients and medical staff.

• Hotels, meeting rooms, and conference centers: Ensure a comfortable atmosphere for guests and participants.

3. Installation Guidelines

To achieve the most accurate performance from the CO2 and temperature sensor CDT-2N40, follow these steps:

1. Preparation: Check the device and accessories. Prepare basic tools such as a screwdriver, signal cables, and power supply.

2. Positioning: Install the sensor 1.2 – 1.5 meters above the floor, away from direct air vents, windows, or heat sources.

3. Mounting: Securely fasten the sensor to the wall using screws.

4. Wiring: Connect the power and signal cables according to the manufacturer’s wiring diagram.

5. Startup and calibration: Power on the device, check the LCD readings, and calibrate if necessary.

Note: Avoid installing the sensor in areas with high humidity, dust, or strong air currents.

4. Benefits of Using the Dwyer CDT-2N40 CO2 Gas Sensor

• Protects occupant health: Provides early warning when CO2 levels exceed safe thresholds.

• Improves HVAC efficiency: Allows intelligent ventilation control based on real-time data, reducing unnecessary energy use.

• Complies with international air quality standards: Meets ASHRAE and WELL requirements for indoor air quality (IAQ).

• Enhances comfort and productivity: Ensures a fresh and healthy indoor environment for better focus and performance.

5. Conclusion

The Dwyer CDT-2N40 CO2 gas sensor is an essential component for modern HVAC and BMS systems. By providing accurate and reliable CO2 and temperature monitoring, it helps ensure optimal indoor air quality, energy efficiency, and occupant comfort.

Contact DLK Vietnam today for detailed consultation and the best offer on the Dwyer CDT-2N40 CO2 and temperature sensor for your project.

DLK Trading Service Company Limited 

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