cgesco2tw2adt04 – co2+t output 4-20ma

Why Choose the Carlo Gavazzi CGESCO2TW2ADT04 CO2 and Temperature Transmitter?

The Carlo Gavazzi CGESCO2TW2ADT04 is a wall-mounted CO2 and temperature transmitter with display designed for indoor air quality monitoring and HVAC control. It combines carbon dioxide and temperature measurement in a modern room-mounted housing, providing two important environmental measurements from a single device.

The CGESCO2TW2ADT04 measures carbon dioxide over a 0–2000 ppm range and provides 4–20 mA analogue outputs for integration with compatible HVAC controllers, PLCs and building management systems. Its temperature channel uses a 0–50 °C scale, while the integrated display sequentially presents the measured environmental data for convenient local monitoring.

CO2 measurement is based on an infrared sensing principle and incorporates automatic calibration to compensate for ageing of the infrared source and support long-term measurement stability. Designed for indoor wall mounting, the CGESCO2TW2ADT04 is particularly suited to demand-controlled ventilation and room climate applications in commercial and institutional buildings.

Key Advantages

• Combined CO2 and temperature measurement reduces the number of separate room sensors required.
• 0–2000 ppm CO2 measuring range is well suited to indoor air quality and ventilation applications.
• 4–20 mA analogue outputs provide robust integration with compatible industrial and building controls.
• Integrated display provides convenient local indication of measured values.
• 0–50 °C temperature scale supports indoor climate monitoring.
• Infrared CO2 measurement provides dependable non-dispersive optical sensing.
• Automatic calibration helps compensate for ageing of the infrared source.
• Wall-mounted room transmitter design supports straightforward indoor installation.

Key Features

• Carlo Gavazzi environmental room transmitter.
• Combined CO2 + temperature measurement.
• 0–2000 ppm CO2 working range.
• 4–20 mA analogue output.
• Integrated display.
• 0–50 °C temperature scale.
• Temperature indication in degrees Celsius.
• Infrared CO2 measurement principle.
• Automatic CO2 calibration for long-term stability.
• 24 V AC ±20% or 15–35 V DC SELV supply.
• <3 W power requirement.
• <5 min warm-up time.
• Designed for indoor wall mounting.
• Suitable for HVAC and building automation systems.
• CE and RoHS compliant.

Reliable CO2 and Temperature Monitoring for HVAC Systems

Carbon dioxide concentration is commonly used as an input for demand-controlled ventilation because changing CO2 levels can indicate occupancy and ventilation requirements. By measuring both CO2 and temperature, the Carlo Gavazzi CGESCO2TW2ADT04 provides building control equipment with useful information for maintaining comfortable indoor conditions while managing ventilation efficiently.

The 4–20 mA analogue interface provides a robust signal for compatible building automation and HVAC controllers, while the local display allows measured values to be viewed directly in the room. Infrared CO2 measurement combined with automatic calibration supports stable long-term monitoring in offices, schools, meeting rooms and other occupied indoor spaces.

Typical Applications

• Demand-controlled ventilation systems.
• Commercial HVAC installations.
• Building management systems.
• Office indoor air quality monitoring.
• Schools and educational facilities.
• Meeting and conference rooms.
• Retail and public buildings.
• Temperature monitoring and room climate control.
• Energy-efficient ventilation systems.