Model Name: AI-CO2-D

Duct Carbon Dioxide Transmitter

No items found.


Ace Instruments Duct CO2 Monitor is a durable solution for ventilation monitoring in HVAC ducts, ventilation systems including cleanroom ventilation, and demand control ventilation systems.

The duct CO2 monitor boasts a Swiss photoacoustic sensor and is housed in a IP54 ABS plastic box. Customize your CO2 monitoring solution through multiple detection range options selected at the time of ordering and communication options including RS-485 Modbus Communication.


  • Fast response photoacoustic sensor (Switzerland) 
  • Optional RS-485 communication 
  • ABS plastic duct enclosure with duct mounting bracket



Sensor Type

Photoacoustic sensor (Switzerland)

Measuring Range
  • Option 1: 0 to 2000 ppm
  • Option 2: 0 to 5000 ppm
  • Option 3: 0 to 10000 ppm

(Selected at time of ordering)


±5% in 0~1000 ppm range

Analog Output

0-10 VDC/ 4-20mA


Optional RS-485 Modbus communication 

Download Specifications

Gain insight into your IAQ solution and know technical specifications

Learn more
Know the capabilities of the latest in IAQ monitoring technology, watch or download PDF for insight
Check our YoutubeDownload Brochure (PDF)

Instruments that exceed your technical expectation

Comprehensive and customized IAQ solutions for all applications

Get in touch with the team at IAQ detectors to customize your indoor air quality solution today