3. Accuracy of CO2 sensors

Evaluation of accuracy of current-generation CO2 sensors

Our prior research found that CO2 sensors deployed for demand controlled ventilation (DCV) applications in California often had large errors, making DCV unreliable. The goal of this task is to evaluate the accuracy of current-generation CO2 sensors marketed for DCV use.

  • Select different types of CO2 and assemble a test system consists of an array of sensors, a reference CO2 instrument, and temperature/relative humidity sensor.
  • Deploy the test systems for up to two years in three buildings: general office space, office conference room, and classroom. 
  • Report CO2 sensor accuracy and implications of test results.