The Dwyer CMT200 CO Transmitter continuously monitors CO levels in parking garages, plant rooms, and HVAC systems. With high accuracy and easy BMS integration, it ensures safety and energy efficiency for modern buildings.

Dwyer CMT200 Carbon Monoxide (CO) Transmitter – A Smart Safety Solution for Parking Garages & Modern BMS Systems

1. Introduction 

In modern Building Management Systems (BMS) and HVAC (Heating, Ventilation & Air Conditioning) applications, monitoring carbon monoxide (CO) levels is essential to ensure occupant safety and optimize energy consumption.

The Dwyer CMT200 CO Transmitter is a professional-grade device designed to accurately measure and monitor carbon monoxide concentration in enclosed or semi-enclosed spaces such as underground parking garages, plant rooms, and maintenance workshops.

With its high accuracy, exceptional durability, and flexible integration options, the CMT200 has become a trusted choice among MEP engineers and system contractors across Vietnam.

2. Key Features of the Dwyer CMT200 CO Transmitter

• Measuring range: 0–200 ppm CO – ideal for enclosed areas such as parking basements or technical rooms.

• Output signals: 4–20 mA or 2–10 V – easily connects to BMS or HVAC systems.

• Replaceable electrochemical sensing module with up to 4-year lifespan, reducing maintenance costs.

• High accuracy: ±2% at the time of calibration.

• Durable housing: UV-resistant polycarbonate enclosure; stable operation from -20°C to +50°C.

• Easy calibration & maintenance, ensuring reliable, continuous performance in demanding environments.

3. Typical Applications

3.1. Underground & Multi-level Parking Garages

The Dwyer CMT200 CO Transmitter continuously monitors CO concentration in parking areas.
When CO levels exceed preset thresholds, the system automatically activates ventilation fans or alarm systems.

• Each transmitter covers approximately 5,000–7,000 ft² (≈465–650 m²).

• Helps reduce health risks and save energy through Demand Control Ventilation (DCV)

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3.2. Plant Rooms, Workshops & Technical Areas

In areas where combustion engines or fuel-burning equipment are present, the CMT200 detects early CO leaks, helping to prevent poisoning risks and protect operators.

3.3. Modern HVAC & BMS Integration

The CO transmitter can be integrated into BMS and HVAC networks for automatic ventilation control, ensuring air quality and energy efficiency.
Measurement data is transmitted to the BMS for automated fan, damper, or alarm control — enabling buildings to meet safety and green standards.

4. Advantages of Choosing the Dwyer CMT200

• Seamless integration – compatible with PLC, BMS, and HVAC systems.

• Simple maintenance – quick transmitter replacement design.

• High stability – <5% drift per year under standard conditions.

• Reliable performance – trusted Dwyer quality (USA).

• Cost-effective – long transmitter lifespan and consistent performance reduce total ownership costs.

5. Installation & Operation Guidelines

Mounting location:

• Install the transmitter 1.5–1.8 m above floor level.

• Avoid direct airflow or blocked ventilation zones.

Power supply: 18–28 VDC/VAC (depending on output type).
Signal wiring: Use shielded cables; avoid routing alongside high-voltage lines.
Calibration: Once per year or as required by the environment.
Electrochemical module replacement: Every 3–4 years to maintain optimal accuracy.

6. Genuine Dwyer CO Transmitters in Vietnam

When purchasing the Dwyer CMT200 CO Transmitter from authorized distributors in Vietnam, customers will receive:

• Official CO/CQ certification ensuring product authenticity.

• Technical support and periodic calibration services.

• Compliance with Vietnamese safety standards for civil and commercial buildings.

• Ready stock and nationwide technical support.

7. Conclusion

If you are looking for a reliable, accurate, and easy-to-integrate CO transmitter, the Dwyer CMT200 is the perfect choice.
It not only safeguards occupants against harmful CO gas but also enhances energy efficiency and system performance for BMS and HVAC operations.

👉 Contact the official distributor in Vietnam today for expert consultation and the latest pricing.

DLK Trading Service Limited Company

📍 Address: 111/7 Vuon Lai Street, Phu Tho Hoa Ward, Ho Chi Minh City, Vietnam
📞 Hotline: +84 70 357 0101
📧 Email: info@dlk.com.vn
🌐 Website: https://dlk.com.vn/
📘 Facebook: facebook.com/congtydlk
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🚚 Nationwide delivery – Full technical support included