Web-IO Carbon Dioxide

Precise Air Quality Monitoring with the Web-IO Carbon Dioxide by Wiesemann & Theis

Monitoring air quality is crucial in many environments - ranging from schools and offices to agricultural operations - to ensure health, comfort, and productivity. The Web-IO Carbon Dioxide by Wiesemann & Theis is a network-enabled measuring device that accurately detects the ambient CO₂ concentration and provides the data over a network. With an integrated data logger, optional connectivity to the W&T Cloud, and versatile alarm functions, it offers a reliable solution for CO₂ monitoring in indoor spaces, greenhouses, and barns. This article highlights the technical features, use cases, and advantages of this innovative device, which meets Industry 4.0 standards and optimizes air quality in various scenarios.

Accurate CO₂ Measurements for a Wide Range of Applications

The Web-IO Carbon Dioxide is equipped with a CO₂ sensor that covers a measuring range from 0 to 5000 ppm. This range is ideal for monitoring indoor air in schools, daycare centers, nursing homes, and offices, where elevated CO₂ levels can impair concentration and well-being. Additionally, the sensor is suitable for agricultural applications such as greenhouse monitoring and barn climate tracking, to ensure optimal conditions for plants and animals. A configurable traffic light LED on the sensor visually indicates when predefined thresholds are exceeded, enabling immediate detection of critical CO₂ levels. These features make the device a versatile solution for precise air quality monitoring.

Intuitive Operation and Network Integration

The Web-IO Carbon Dioxide is extremely user-friendly thanks to its intuitive web interface. Users can access real-time CO₂ data and historical trends via a web browser without any additional software installation. The graphical display of measurement data facilitates trend analysis and issue detection, making CO₂ monitoring more efficient. Seamless network connectivity allows flexible integration into existing systems, making the device ideal for facility managers and agricultural operators alike. Real-time data can be retrieved via HTTP or TCP sockets, for instance using JavaScript (AJAX), enabling dynamic integration into other web pages or applications. Optional connectivity to the W&T Cloud provides global access to data, which simplifies remote site monitoring.

Flexible Alarm and Reporting Functions

The Web-IO Carbon Dioxide offers comprehensive alarm and reporting capabilities. Up to 12 individually configurable alarms can be set up to automatically send notifications when CO₂ thresholds are exceeded. These alerts can be delivered via email, SNMP trap, or syslog, which is especially beneficial in sensitive environments like schools or offices where prompt response to elevated CO₂ levels is essential. In addition, the reporting function enables regular email delivery of summarized measurement data, which can be used for audits, quality control, or documentation of environmental conditions. The configurable LED light on the device provides an additional onsite visual warning. These features increase both transparency and safety in air quality monitoring.

Seamless Integration into Industry 4.0 and IoT

The Web-IO Carbon Dioxide is fully equipped for Industry 4.0 requirements. It supports modern protocols such as OPC UA, REST, and MQTT, facilitating easy integration into existing automation systems and IoT platforms. It also offers interfaces like SNMPv1, SNMPv2c, SNMPv3, Modbus TCP, OPC DA, and Sensobase for database integration via ODBC. Developers can directly access measurement data via TCP or UDP sockets to create custom solutions. The HTTP interface allows direct access to current measurements—e.g., using JavaScript (AJAX)—for dynamic embedding into other websites or applications. Cloud connectivity via the W&T Cloud further enables worldwide access to measurement data, enhancing flexibility in connected environments.

Long-Term Data Logging and Global Access

An integrated data logger stores CO₂ measurements for a period ranging from at least 7 weeks up to 20 years, depending on the selected recording interval (15 seconds to 1 hour). Data can be exported in various formats such as FTP, Excel files, or email attachments, allowing flexible post-processing. The optional W&T Cloud connectivity enables worldwide access to stored data, making it available anytime, anywhere. A built-in battery-backed clock ensures accurate timestamps, which can be further refined via time server synchronization. These features guarantee reliable documentation and analysis of environmental conditions, which is especially beneficial for indoor air monitoring and agricultural applications like greenhouse or barn management.

Versatile Use Cases

The Web-IO Carbon Dioxide is designed for a wide variety of applications. In offices, schools, daycare centers, and nursing homes, it monitors indoor air to prevent health-compromising CO₂ concentrations and support user well-being. In agricultural environments such as greenhouses and barns, it helps optimize climate conditions to foster ideal growth for plants and animals. The LED traffic light provides intuitive visual feedback, especially useful in public spaces for immediate response to elevated CO₂ levels. In industrial environments, the device can be used for process monitoring where air quality plays a crucial role. Logging via FTP, Excel file, or email attachments supports documentation and analysis, which is important for quality management and audits.

Flexible Power Supply and Standards Compliance

The Web-IO Carbon Dioxide is powered via Power over Ethernet (PoE), supporting both phantom power over data pairs and power over unused wire pairs. Alternatively, it can be powered with an external power supply unit, increasing deployment flexibility in environments lacking PoE infrastructure. The device complies with standards for use in office and industrial environments, offering high immunity in accordance with EN 61000-6-2 and low emissions per EN 55032:2015 + A1 Class B, EN 61000-3-2, and EN 61000-3-3. These features ensure reliable, interference-free operation even in demanding environments.

Please note: A power supply is NOT included in the delivery.

Durability and Reliability

The Web-IO Carbon Dioxide is designed for continuous operation and comes with a five-year warranty. Its robust construction and DIN rail mounting capability make it ideal for use in a variety of environments, from offices to agricultural facilities. The internal clock, backed by a battery, ensures precise timekeeping, which is further enhanced by synchronization with a time server. These features underscore the durability and reliability of the device, even under challenging conditions.

An Essential Tool for Air Quality Monitoring

The Web-IO Carbon Dioxide by Wiesemann & Theis is a state-of-the-art solution for precise CO₂ monitoring in indoor and agricultural environments. With its built-in data logger, W&T Cloud connectivity, and comprehensive networking capabilities, it offers a flexible and reliable solution for offices, schools, greenhouses, and barns.

Support for modern protocols such as OPC UA, REST, and MQTT, as well as the configurable LED indicator, make it ideal for Industry 4.0 requirements. Whether improving indoor air quality, optimizing barn conditions, or documenting measurement data - this device is an indispensable tool for professional users.