High-Precision Carbon Monoxide Monitoring & Transmission
The Polwax Atmos Series CM50 Carbon Monoxide (CO) Gas Detector & Transmitter is a high-precision, industrial-grade device designed for continuous monitoring of carbon monoxide concentrations in enclosed and semi-enclosed environments.
CO Transmitter
Atmos Series - CM50
- Easy to Install and suitable for Wall Mounting
- High Accuracy and Stability
- Easy to configured via keys
- Output Signal : 4 - 20 mA / 0 - 10 V
- Inbuilt Buzzer
- Protection Rating: IP65 for outdoor and harsh environment use
- Compact and Durable Design
- User-Friendly Configuration
- Integrated Temperature Compensation
- Advanced Communication RS-485
The Polwax Atmos Series CM50 Carbon Monoxide Transmitter is a high-precision, industrial-grade transmitter designed for continuous measurement and monitoring of carbon monoxide (CO) concentrations in enclosed and semi-enclosed environments. Equipped with an advanced electrochemical sensing technology, the CM50 provides accurate, stable, and real-time CO concentration measurements. It is designed for applications where reliable carbon monoxide monitoring is required, including underground parking facilities, garages, tunnels, boiler rooms, mechanical rooms, industrial plants, commercial buildings, and HVAC-controlled environments.
Product Overview
The Polwax Atmos Series CM50 Carbon Monoxide Transmitter is an advanced industrial-grade solution designed for continuous measurement and real-time monitoring of carbon monoxide (CO) concentration in enclosed and semi-enclosed environments. Developed for applications where accurate and reliable CO measurement is essential, the CM50 combines high-performance electrochemical sensing technology with flexible signal transmission and robust industrial construction.
The CM50 continuously measures CO concentration and converts the measured value into standard industrial output signals for seamless integration with Building Management Systems (BMS), HVAC controllers, PLCs, SCADA systems, ventilation control systems, data acquisition systems, and industrial automation platforms. This enables facility operators and control systems to receive real-time CO measurement data and take appropriate ventilation or process-control actions based on actual environmental conditions.
With configurable measurement ranges of 0–1000 ppm and 0–2000 ppm, the CM50 provides flexibility for different monitoring requirements. Its 1 ppm resolution, ±5 ppm accuracy, and response time of ≤30 seconds provide reliable measurement performance for continuous environmental monitoring applications.
The transmitter supports a wide range of industrial communication options, including 4–20 mA, 0–5 V, 0–10 V, and RS485 Modbus RTU. These outputs make the CM50 compatible with both conventional analog control systems and modern digital automation networks. The RS485 Modbus RTU interface allows measured CO values to be transmitted directly to centralized monitoring platforms, while analog outputs provide straightforward connection to PLCs, HVAC controllers, and other industrial control equipment.
Designed for long-term operation, the CM50 incorporates an advanced electrochemical sensor with integrated temperature compensation, helping maintain measurement stability across changing operating conditions. The sensor offers a service life of up to 5 years, depending on environmental conditions and application.
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Technical Data
Measurement Range
0-1000 ppm / 0-2000 ppm (configurable)
Accuracy
±5 ppm
Resolution
1ppm
Response Time
≤30 seconds
Repeatability
≤2% of signal value
Zero Drift
±3 ppm
Long-Term Drift
≤2%
Operating Temperature
-20°C to 50°C
Operating Humidity
15–90% RH (non-condensing)
Pressure Range
90–110 kPa
Sensor Lifespan
Up to 5 years
Power Supply
10–30V DC
Output Signals
Rs485 (Modbus RTU), 4-20mA, 0-5V, 0-10V
Display
Optional OLED display
Installation Method
Wall-mounted/Conduit-mount
Enclosure Material
Screw terminals
Process Connection
High-strength, dustproof, waterproof
Features
High-Accuracy CO Measurement
Advanced electrochemical sensing technology provides accurate and stable carbon monoxide measurement with ±5 ppm accuracy, 1 ppm resolution, and a fast response time of ≤30 seconds for reliable real-time monitoring.
Flexible Output & Communication
The CM50 supports 4–20 mA, 0–5 V, 0–10 V, and RS485 Modbus RTU outputs, enabling seamless integration with BMS, HVAC, PLC, SCADA, and industrial automation systems.
Rugged & Reliable Design
Built with an IP65-rated enclosure, integrated temperature compensation, and a sensor lifespan of up to 5 years, the CM50 is designed for reliable long-term operation in demanding industrial and commercial environments.
Applications
Underground Parking & Garages
The CM50 continuously measures carbon monoxide levels generated by vehicle exhaust in enclosed parking areas and garages. It can be integrated with HVAC and ventilation control systems to support demand-based ventilation and efficient air-quality management.
Industrial & Boiler Rooms
The CM50 provides continuous CO measurement in boiler rooms, mechanical rooms, manufacturing facilities, and industrial plants where combustion processes may produce carbon monoxide. Its multiple output options enable integration with PLC, SCADA.
Tunnels & Commercial Buildings
Documents
Looking for a Reliable Carbon Monoxide Transmitter?
Ensure accurate and continuous carbon monoxide monitoring with the Polwax Atmos Series CM50 Carbon Monoxide Transmitter. Explore detailed specifications, output options, integration capabilities, customization options, and expert guidance for applications including underground parking facilities, garages, tunnels, boiler rooms, industrial plants, commercial buildings, HVAC systems, and building automation.
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