Atmos Series – CD50
The CD50 is a high-performance carbon dioxide CO₂ transmitter engineered for accurate air quality monitoring in indoor and industrial environments. With advanced RS-485 communication, robust IP65-rated housing, and integrated temperature compensation, it offers reliable carbon dioxide CO₂ measurement for applications ranging from office ventilation to greenhouse climate control.
CO₂ Transmitter
Atmos Series - CD50
- Easy to Install and suitable for Wall Mounting
- High Accuracy and Stability
- Wide Measuring Range
- Compact and Durable Design
- User-Friendly Configuration
- Ruggedized Enclosure
The Polwax CD50 is an advanced carbon dioxide CO₂ transmitter designed to deliver accurate and reliable CO₂ concentration measurements across diverse environments. Engineered with precision and durability
in mind, thecarbon dioxide CD50 ensures consistent performance for both indoor and industrial applications.
The gas-permeable membrane on the sensor shell has good gas permeability, the gas in the environment can circulate freely, and the imported sensor is built in the shell, which has high measurement accuracy. Quick Response. Our company provides a one-year warranty for the product. Under normal circumstances, the service life is up to 5 years. Our co2 sensor housing is waterproof and dustproof and is not easily damaged. Only need to replace the breathable membrane regularly every year.
Product Overview
The CD50 by Polwax is an advanced carbon dioxide CO₂ transmitter crafted for accurate, stable, and long-term environmental monitoring. With its robust design, precision sensing technology, and flexible connectivity, CD50 is a reliable solution for both indoor air quality management and industrial safety. Whether you need to maintain ideal CO₂ levels in a greenhouse, ensure worker safety in confined manufacturing areas, or optimize ventilation in commercial buildings, CD50 delivers dependable performance across a wide range of applications.
This device utilizes a high-precision photodiode sensor housed inside a gas-permeable membrane that ensures excellent gas exchange and consistent CO₂ detection. With fast response time and high resolution (as precise as 1 ppm), CD50 allows you to act swiftly to changing environmental conditions. The transmitter supports multiple output options—including 4–20 mA, 0–10 V, and RS-485 Modbus RTU—for seamless integration into HVAC systems, Building Management Systems (BMS), programmable logic controllers (PLCs), or greenhouse automation platforms.
Built to endure harsh environments, CD50 is protected by a rugged IP65-rated enclosure, making it dustproof, water-resistant, and suitable for both indoor and semi-outdoor installation. Its compact and durable industrial-grade ABS housing makes installation easy, whether mounted on a wall or a pole. The unit features low power consumption, integrated temperature compensation, and user-friendly configuration, making it a smart choice for sustainable and scalable air quality solutions. Whether you’re a facility manager, environmental engineer, or greenhouse operator, the Polwax CD50 offers a powerful combination of accuracy, adaptability, and affordability. With growing concerns about indoor air quality and environmental sustainability, this smart CO₂ transmitter empowers businesses to create healthier, more efficient environments—today and in the future.
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Technical Data
Measurement Range
0-2000ppm/ 0-5000ppm/ 0-10000ppm
Accuracy
5000 ppm: ±(50ppm +3% F•S)(25℃),10000 ppm:±(50ppm +5% F•S) (25℃)
Resolution
1ppm
Warm-up time
2min (available), 10min (max.)
Sensor Type
High-precision photodiode
Output Options
4-20mA, 0-10V
Power Supply
12V-24V DC
Stability
<2%F·S
Non-linearity
<1%F·S
Data update
2s
Humidity Range
0-95% RH (non-condensing)
Protection Rating
Ip65 (water-resistant and dustproof)
Output Signals
Rs485 (Modbus RTU), 4-20mA, 0-5V, 0-10V
Mounting Options
Wall mount, Pole mount
Communication Protocols
MODBUS RTU
Housing Material
Industrial-grade ABS
Process Connection
High-strength, dustproof, waterproof
Features
High Accuracy and Stability
The Polwax CD50 CO2 Transmitter is engineered for environments where precision and reliability are non-negotiable. It incorporates a high-precision photodiode sensor and an advanced gas-permeable membrane that ensures only the target gas—carbon dioxide—enters the sensing chamber. This design minimizes cross-sensitivity to other gases and provides accurate, repeatable measurements in real-time. With a measurement resolution of 1 ppm and accuracy of ±(50 ppm + 3–5% of full scale), CD50 is ideal for critical applications such as greenhouse CO₂ control, HVAC optimization, and industrial safety.
Wide Measuring Range
The Polwax CD50 is designed with a versatile measuring range to meet the demands of various environments, from sensitive indoor spaces to complex industrial zones. With three configurable detection ranges—0–2000 ppm, 0–5000 ppm, and 0–10,000 ppm—this CO₂ transmitter adapts easily to the specific needs of your application. For indoor air quality (IAQ) in offices, classrooms, hospitals, and other public spaces, the 0–2000 ppm range provides accurate tracking of ventilation effectiveness and occupant safety. In greenhouses and agricultural environments, the 0–5000 ppm range supports CO₂ enrichment strategies.
User-Friendly Configuration
The Polwax CD50 is built not just for performance, but for ease of use right out of the box. Its user-friendly configuration ensures that installation, setup, and calibration are quick and hassle-free—even for first-time users or system integrators working across multiple units. Thanks to its plug-and-play design, CD50 can be easily installed on a wall or pole using standard mounting brackets. Once installed, the device offers intuitive configuration options via RS-485 Modbus RTU communication, allowing users to quickly adjust settings such as measurement range, output signal type, and response time to match the application’s.
Applications
Indoor Air Quality Management
Designed for offices, schools, and public areas, the CD50 helps maintain safe CO₂ levels for healthier indoor environments. It supports smarter ventilation, reduces fatigue, and enhances occupant comfort and productivity through continuous air quality monitoring.
Greenhouse Climate Control
The CD50 ensures optimal CO₂ levels in greenhouses, promoting faster, healthier plant growth. With precise real-time monitoring and reliable output, it helps growers enhance crop yield, uniformity, and CO₂ usage efficiency—making climate control smarter.
