Newly redesigned MSCT Series »
Gas icon


Toxic and Combustible Gas Sensors, Refrigerant Sensors, Controllers, and Accessories

For toxic and combustible gas, as well as refrigerant leak detection, ACI’s line of gas sensors will solve the most challenging applications with the fewest devices and lowest total installed cost

ACI Gas Sensors
Gas Detection/IAQ Sensors

Product Line Cards

Product catalog
Complete Product Catalog

Product Line Cards

Gas Products

343 Results
NO2 Duct
Item: 109680

Model: NO2-D

Nitrogen Dioxide Sensor, 0-6 PPM Default, (10 PPM Max), Duct Mount, 4-20mA, 2-10VDC Output

NOTE: The NO2-D is not compatible with the Q4C-II , M-Controller II, or Q-controllers. It is not compatible with Modbus RTU communication.  


Learn About Our Applications

View guides highlighting the unique sensing solutions ACI offers for some of the most common applications in our industry.

View Our Helpful Calculators

Use ACI’s calculators for Span and Temperature Conversion.