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The CO₂ & VOC Sensors category focuses on indoor air quality sensors that track ventilation effectiveness and chemical contaminants inside homes, schools and light-commercial buildings. These devices help HVAC professionals verify outdoor air rates, identify “stuffy” spaces and diagnose complaints related to odors or off-gassing.
Here you’ll find NDIR CO₂ sensors, combined CO₂/temperature/humidity monitors, VOC sensors that respond to off-gassing and chemical pollutants, and multi-parameter CO₂+VOC IAQ modules. Many models include local displays, analog outputs, BACnet/Modbus communication and setpoint relays for demand-controlled ventilation (DCV) strategies.
When selecting CO₂ and VOC sensors, consider measurement range, accuracy, sensor type (NDIR for CO₂, MOS or photoionization for VOCs), calibration method (auto vs. manual), output type (analog, BACnet, Modbus) and mounting location. Matching the sensor to the application makes it easier to document IAQ and tune ventilation sequences.
Pro tip: Use a CO₂ + RH + temperature sensor for ventilation control, and add a CO₂ & VOC combo unit when odor complaints or chemical sources are suspected. Logged trend data is powerful when showing customers how IAQ improves after ventilation or filtration upgrades.
CO2 and VOC sensors for HVAC and indoor air quality including NDIR CO2 wall sensors, CO2 temperature and humidity monitors, VOC sensors for odors and chemical pollutants, CO2 and VOC combo IAQ modules and demand-controlled ventilation sensors with analog and BACnet or Modbus outputs.
There are no products listed under this category.