Gas Sensors
AQ7 Series
High resolution with a low detection limit. High correlation with control station. Individual compensation for temperature and cross sensitivity
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Overview
Honeywell has designed the AQ Series with algorithmic compensation that gives users very high resolution and long-term stability.
These sensors are designed to be used in environmental applications with a variety of gases detected: Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Ozone (O3), Sulfur Dioxide (SO2).
AQ7 Series gas sensors are designed to be highly specific to the gas they are intended to measure, they will still respond to some degree to various other gases, achieving individual compensation for temperature and cross sensitivity.
Specifications
Features
- Additional Filter
- None
- Operating Principle
- 4-Electrode Electrochemical
- Nominal Range
- 0 to 1 ppm
- Inboard Filter
- None
Overview
- Warranty
- 1 Year
Operating Characteristics
- Storage Temperature
- 0 to 20°C
- Operating Pressure Range
- Atmospheric ± 10%
- Operating Humidity Range
- 15 to 90% RH (Non-Condensing)
- Expected Operating Life
- 2 Years in Air
Options
- Series Name
- AQ7
- Brand
- Honeywell
Technical Specifications
- Sensor Type Used
- 4-Electrode Electrochemical
- Position Sensitivity
- None
- Long Term Sensitivity Drift
- < 10% Signal Los per Annum
- Gases Detected
- Sulfur Dioxide (SO2)
Applications & Compatibility
- Recommended Load Resistor
- 68 Ohm
Electrical Specifications
- Power Supply
- 5 VDC
Material Specifications
- Pin Material
- Copper with Gold Coating
- Casing Material
- ABS
Features & Benefits
- Features & Benefits
- High Correlation with Control Station
- High Resolution
- Independent NO2 Cross Compensation by Using 4th Electrode
- Individual Compensation for Temperature and Cros Sensitivity
- Low Detection Limit
Dimensions & Weight
- Dimensions
- 31.5 mm x 31.5 mm x 19.8 mm
Applicability
- Application
- Ambient Environmental Monitoring
Features
- Additional Filter
- None
- Operating Principle
- 4-Electrode Electrochemical
- Nominal Range
- 0 to 1 ppm
- Inboard Filter
- None
Overview
- Warranty
- 1 Year
Operating Characteristics
- Storage Temperature
- 0 to 20°C
- Operating Pressure Range
- Atmospheric ± 10%
- Operating Humidity Range
- 15 to 90% RH (Non-Condensing)
- Expected Operating Life
- 2 Years in Air
Options
- Series Name
- AQ7
- Brand
- Honeywell
Technical Specifications
- Sensor Type Used
- 4-Electrode Electrochemical
- Position Sensitivity
- None
- Long Term Sensitivity Drift
- < 10% Signal Los per Annum
- Gases Detected
- Sulfur Dioxide (SO2)
Applications & Compatibility
- Recommended Load Resistor
- 68 Ohm
Electrical Specifications
- Power Supply
- 5 VDC
Material Specifications
- Pin Material
- Copper with Gold Coating
- Casing Material
- ABS
Features & Benefits
- Features & Benefits
- High Correlation with Control Station
- High Resolution
- Independent NO2 Cross Compensation by Using 4th Electrode
- Individual Compensation for Temperature and Cros Sensitivity
- Low Detection Limit
Dimensions & Weight
- Dimensions
- 31.5 mm x 31.5 mm x 19.8 mm
Applicability
- Application
- Ambient Environmental Monitoring
- Additional Filter : None
- Warranty : 1 Year
- Storage Temperature : 0 to 20°C
- Series Name : AQ7
- Sensor Type Used : 4-Electrode Electrochemical
- Recommended Load Resistor : 68 Ohm
- Power Supply : 5 VDC
- Position Sensitivity : None
- Pin Material : Copper with Gold Coating
- Operating Principle : 4-Electrode Electrochemical
- Operating Pressure Range : Atmospheric ± 10%
- Operating Humidity Range : 15 to 90% RH (Non-Condensing)
- Nominal Range : 0 to 1 ppm
- Long Term Sensitivity Drift : < 10% Signal Los per Annum
- Inboard Filter : None
- Gases Detected : Sulfur Dioxide (SO2)
- Features & Benefits : High Correlation with Control Station|High Resolution|Independent NO2 Cross Compensation by Using 4th Electrode|Individual Compensation for Temperature and Cros Sensitivity|Low Detection Limit
- Expected Operating Life : 2 Years in Air
- Dimensions : 31.5 mm x 31.5 mm x 19.8 mm
- Casing Material : ABS
- Brand : Honeywell
- Application : Ambient Environmental Monitoring
Data Sheet
Name
Description
File Size
Date
Size
Honeywell AQ7OZ Ozone O3 7-series Sensor
application/pdf 429.27 KB
5/2/2025
429.27 KB
Honeywell AQ7CO Carbon Monoxide CO 7-series Sensor
application/pdf 406.09 KB
5/2/2025
406.09 KB
Honeywell AQ7ND Nitrogen Dioxide NO2 7-series Sensor
application/pdf 381.24 KB
5/2/2025
381.24 KB
AQ7 Series Sulfur Dioxide SO2 Environmental Gas Sensor Data Sheet
application/pdf 455.6 KB
5/2/2025
455.6 KB
Brochure
Name
Description
File Size
Date
Size
Industrial Applications: Going Beyond Limits
application/pdf 16.68 MB
2/11/2025
16.68 MB
Detecting the Third Element, Honeywell Gas Sensing
application/pdf 4.87 MB
6/7/2022
4.87 MB
Application Note
Name
Description
File Size
Date
Size
Solutions For Healthier Air & HVAC Systems
application/pdf 3.88 MB
5/31/2022
3.88 MB
Environmental Gas Sensors for Ambient Air Quality Stations – AQ7
application/pdf 3.15 MB
5/17/2022
3.15 MB
Others
Name
Description
File Size
Date
Size
AQ7ND Nitrogen Dioxide Gas Sensor - Characterization Note
application/pdf 981.56 KB
1/3/2024
981.56 KB
AQ7SO2 Sulfur Dioxide Gas Sensor - Characterization Note
application/pdf 1.09 MB
1/3/2024
1.09 MB
AQ7CO Carbon Monoxide Gas Sensor - Characterization Note
application/pdf 978.67 KB
1/3/2024
978.67 KB
AQ7OZ Ozone Gas Sensor - Characterization Note
application/pdf 952.39 KB
1/3/2024
952.39 KB
Name
Description
File Size
Date
Size
Industrial Applications: Going Beyond Limits
application/pdf 16.68 MB
2/11/2025
16.68 MB
AQ7ND Nitrogen Dioxide Gas Sensor - Characterization Note
application/pdf 981.56 KB
1/3/2024
981.56 KB
AQ7SO2 Sulfur Dioxide Gas Sensor - Characterization Note
application/pdf 1.09 MB
1/3/2024
1.09 MB
AQ7CO Carbon Monoxide Gas Sensor - Characterization Note
application/pdf 978.67 KB
1/3/2024
978.67 KB
AQ7OZ Ozone Gas Sensor - Characterization Note
application/pdf 952.39 KB
1/3/2024
952.39 KB
Solutions For Healthier Air & HVAC Systems
application/pdf 3.88 MB
5/31/2022
3.88 MB
Detecting the Third Element, Honeywell Gas Sensing
application/pdf 4.87 MB
6/7/2022
4.87 MB
Environmental Gas Sensors for Ambient Air Quality Stations – AQ7
application/pdf 3.15 MB
5/17/2022
3.15 MB
Honeywell AQ7OZ Ozone O3 7-series Sensor
application/pdf 429.27 KB
5/2/2025
429.27 KB
Honeywell AQ7CO Carbon Monoxide CO 7-series Sensor
application/pdf 406.09 KB
5/2/2025
406.09 KB
Honeywell AQ7ND Nitrogen Dioxide NO2 7-series Sensor
application/pdf 381.24 KB
5/2/2025
381.24 KB
AQ7 Series Sulfur Dioxide SO2 Environmental Gas Sensor Data Sheet
application/pdf 455.6 KB
5/2/2025
455.6 KB
Name
Date
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Description
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ABQ707-400
AQ7CO
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
ABQ707-400
AQ7CO
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
ADQ702-400
AQ7SO2
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
ADQ702-400
AQ7SO2
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
AGQ706-400
AQ7ND
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
AGQ706-400
AQ7ND
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
AQ3-BP01
PCBA FOR SO2CO
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
AQ3-BP01
PCBA FOR SO2CO
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
AQ3-BP02
PCBA FOR NO2O2
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
AQ3-BP02
PCBA FOR NO2O2
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
ASQ044-H00
AQ3OZ Sensor
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
ASQ044-H00
AQ3OZ Sensor
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
ASQ704-400
AQ7OZ
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
ASQ704-400
AQ7OZ
https://honeywell.scene7.com/is/image/Honeywell65/sps-ast-aq7co-co-gas-sensor-front
