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TotalSense Series

Duct Air Quality Sensor
Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference

TotalSense PM/VOC/CO2/RH/T Duct

Vortex probe ensures quick and accurate response Fully configurable display Choose up to 6 air quality indicators Build a full validation system Made in USA; 7 year warranty on electronics

Build a complete air quality system for indoor, duct, and outdoor
Six environmental sensors: PMx, VOC, CO2, RH, T, barometric pressure
BACnet/Modbus or analog outputs with set-point relay

  • Reduce installation costs with multiple sensors in a rugged, easy-mount duct enclosure
  • Specify the exact product for your application and made in USA
  • Sense unhealthy particulates or TVOC's in your duct system
  • Industry-leading temperature and barometric pressure compensated CO2 sensing with non-dispersive infrared sensing element (NDIR), 15+ year life expectancy on CO2 sensing element; ±30ppm, ±3% of reading
  • Tamper-proof
  • Field-replaceable RH, Temp, and CO2 sensors ease maintenance
  • 7-year limited warranty / 3 years on CO2 sensor - 2 years on all others


The TotalSense Series Duct AQ sensor provides more data for more advanced ventilation control while drastically reducing installation cost and time on a project. It includes a comprehensive selection of AQ sensing with carbon dioxide (CO2), relative humidity (RH), and temperature plus options for total volatile organic compounds (TVOC), barometric pressure and particulate matter (PM).


  • Measure duct air quality to validate filtration systems and deliver fresh air
  • Verify effectiveness of IAQ strategies in post covid environment
  • Energy management/building control
  • Facilitates compliance with ASHRAE 62.1 standard for air quality
  • Contributes toward satisfying Feature A08 and T06 under the WELL Building Standard®
Product Price Quantity
AQ2D-BC2AAID Duct, RS485, CO2, 2%RH2K2 Temp, OLED
$789.00 /


AQ2D-BC2AAJD Duct, RS485, CO2, 2%RH1K8 Temp, OLED
$789.00 /


AQ2D-BC2AAKD Duct, RS485, CO2, 2%RH20K Temp, OLED
$789.00 /


AQ2D-BC2APBD Duct,RS485,CO2,2%RH,PM,Tmp Xmit,OLED
$1,170.00 /


AQ2D-BC2VPBD Duct, RS485, CO2, 2%RHVOC, PM, Temp, OLED
$1,395.00 /


All prices shown are excluding tax unless otherwise specified.