SHSUCOTH – CO2 Temperature & Humidity Sensor without display

Why Choose the Carlo Gavazzi SHSUCOTH CO2, Temperature & Humidity Sensor?

The Carlo Gavazzi SHSUCOTH is a Smart Dupline CO2, temperature and relative humidity sensor designed for indoor environmental monitoring and intelligent building automation. This wall-mounted sensor combines three important room measurements in a single compact device, allowing a Smart Dupline system to monitor indoor air quality, ambient temperature and humidity without requiring separate sensors.

The SHSUCOTH measures carbon dioxide concentrations from 0 to 2000 ppm, ambient temperature from -20 to +50 °C and relative humidity from 0 to 100% RH. Its combined sensing capabilities make it particularly suitable for HVAC and demand-controlled ventilation applications where environmental conditions can be used to optimise comfort, ventilation and building performance.

Designed as the version without a local display, the SHSUCOTH provides a clean and discreet installation where measured values are required by the building automation system rather than displayed in the room. The sensor is powered directly from the Smart Dupline 2-wire bus, which carries both power and communication, simplifying installation and allowing multiple sensors to share the same bus connection.

Key Advantages

• Combines CO2, temperature and humidity measurement in one compact sensor.
• 0–2000 ppm CO2 measuring range supports indoor air-quality and ventilation control.
• -20 to +50 °C temperature measuring range supports room climate monitoring.
• 0–100% RH humidity measuring range provides comprehensive relative humidity monitoring.
• Smart Dupline bus-powered operation eliminates the need for a separate local power supply.
• Power and communication use the same 2-wire Dupline bus, reducing installation wiring.
• Multiple sensors can be connected to the same Dupline bus for efficient building-wide monitoring.
• Display-free design provides a clean, discreet wall-mounted solution for automated buildings.

Key Features

• Carlo Gavazzi Smart Dupline environmental sensor.
• Integrated CO2, temperature and relative humidity sensing.
• No local display.
• 0–2000 ppm CO2 measurement range.
• -20 to +50 °C temperature measurement range.
• 0–100% RH humidity measurement range.
• Designed for indoor environmental and HVAC monitoring.
• Wired Smart Dupline fieldbus.
• Bus-powered operation.
• 2-wire bus connection for power and communication.
• Supports multidrop installation of multiple Smart Dupline sensors.
• Surface-mounted wall installation.
• Compact 80 × 90 × 26 mm housing.
• IP20 protection rating.

Integrated Indoor Air Quality and Climate Monitoring

Monitoring carbon dioxide, temperature and relative humidity provides a more complete picture of indoor environmental conditions than measuring temperature alone. CO2 concentration can be used as an indicator of ventilation requirements in occupied spaces, while temperature and humidity measurements provide additional information for maintaining comfortable and controlled room conditions.

The Carlo Gavazzi SHSUCOTH integrates all three measurements into the Smart Dupline building automation system. This allows environmental data to be incorporated into HVAC, ventilation and other building-control strategies. Because the sensor is bus-powered and communicates over the same two conductors, multiple room sensors can be installed on the same Dupline bus with significantly simplified field wiring.

Typical Applications

• Indoor air-quality monitoring.
• Demand-controlled ventilation systems.
• HVAC monitoring and control.
• Smart home and building automation.
• Office and workplace environmental monitoring.
• Meeting rooms and conference facilities.
• Schools, classrooms and educational buildings.
• Residential temperature and humidity monitoring.
• CO2-based ventilation control.
• Smart Dupline building automation installations.