aSense Relay – CO2 and Temperature Transmitters

Carbon Dioxide Wall Mounted Sensor Range

Available Sizes/Options

  • aSENSE-D - CO2 & Temperature Sensor w/ Display

aSENSE® is an all-digital, low-cost transmitter for installation in the climate zone. It measures both CO2 concentration and temperature in the ambient air, transforms the data into output signals and sends these values to a comprehensive system. The aSENSE® is a key component for climate control of buildings and other processes. It is also a cost-efficient gas alarm sensor for spaces where carbon dioxide gas is a potential danger.

Product Details

  • State-of-the-art Non-Dispersive InfraRed (NDIR) technology to measure CO2
  • Cost-optimized for connection to DDC:s
  • Contributes to lower energy costs when it is applied in a Demand Control Ventilation (DCV) strategy
  • Available in 5 different carbon dioxide measurement ranges
  • Internal automatic self diagnostics
  • Maintenance interval > 5 years
  • Serial communication port for connection to a PC or a GSM module
  • 2 analogue outputs as standard (V/mA). Relay output as option
  • Cost-efficient RS485 or LonWorksTM local network communication as options
  • Internal 2-channel logger as option



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Service Request

We recommend Duomo Gas Detection products are serviced at least annually to ensure efficacy and extend sensor life. Our qualified team of engineers are available Nationwide.

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