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Indoor Air Quality, Carbon Dioxide (CO2) Monitor

Extech CO230

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The Extech CO230 measures carbon dioxide (CO₂), air temperature, and humidity. It features automatic baseline calibration (ABC) with disable for use in areas with continuously elevated CO2 levels. Its alarm function with user settable high/low CO2 level is perfect for monitoring air quality and ensuring proper air ventilation in conference rooms, schools, greenhouses, factories, hotels, hospitals and anywhere that high levels of carbon dioxide are generated. The CO230 also calculates dew point and wet bulb values, min/max CO2 value recall, and statistical weighted averages of TWA (eight hour time weighted average) and STEL (15 minute short term exposure limit). Alarm relay output for ventilation control and wall mount. Complete with Universal AC adaptor and multiple plug types (US, EU, UK, AUS).

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General Specifications
Carbon Dioxide (CO?)
0 to 9,999ppm
Carbon Dioxide (CO?) Max Resolution
Dew Point
-4 to 140 °F (-20 to 60 °C)
Dew Point Max Resolution
0.1 °F/ °C
Relative Humidity
0.1 to 99.9%
Relative Humidity Max Resolution
Temperature (Air)
14 to 140°F (-10 to 60°C)
Temperature (Air) Max Resolution
Wet Bulb
23 to 140 °F (-5 to 60 °C)
Wet Bulb Max Resolution
0.1 °F/ °C
Additional Details
5.1 × 3.4 × 2.4" (130 × 85 × 60mm)
2 years
7.2oz (204g)
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech CO230