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Manufacturer:: Honeywell
Honeywell AQ7CO Electrochemical Carbon Monoxide Gas Sensor
The AQ7CO Carbon Monoxide (CO) Gas Sensor is a high-performance electrochemical sensor designed for environmental monitoring applications. It offers high resolution, low detection limit, and high correlation with individual compensation for temperature and cross sensitivity. The sensor part number is ABQ707-400, and it is characterized at 20°C, 50 %RH, and 1013 mBar for three months from the date of manufacture.
| Technology | 4-electrode electrochemical |
| Measurement Range | 0 ppm CO to 20 ppm CO |
| Maximum Overload | 50 ppm CO |
| Onboard Filter | to remove SOx/NOx/H2S and O3 |
| Sensitivity | 375 nA/ppm ±125 nA/ppm |
| Response Time (T90) | < 60 seconds |
| Resolution (when using recommended electronics) | 10 ppb |
| Baseline Offset | <±200 nA |
| Repeatability | < ±3 % of signal |
| Linearity | linear |
| Low Detection Limit | 40 ppb |
| Recommended Load Resistor | 68 Ω |
| Sensor Bias Voltage | 0 mV |
| Weight | 9 g |
| Outer Plastic Body Material | ABS |
| Contact Material | copper with gold coating |
| Orientation Sensitivity | none |
| Operating Temperature Range | -30°C to 50°C (55°C intermittent) |
| Operating Humidity Range | 15 %RH to 90 %RH non-condensing |
| Recommended Storage Temperature | 0°C to 20°C in original sealed container |
| Typical Applications | ambient environmental monitoring |
| Storage Life | 6 months in original sealed container |
| Long-Term Sensitivity Drift | < 10 % signal loss per annum |
| Expected Operating Life | two years in air |
| Warranty | two years |
To learn more, please download the PDF.
