Extech Indoor Air Quality CO2 Data Logger – EA80

In stock

The indoor air quality CO2 data logger measures CO2, temperature, humidity, dew point and wet bulb. Great for monitoring areas like greenhouses, barns, offices, schools and hospitals.

Extech Indoor Air Quality CO2 Data Logger – EA80

Measures Carbon Dioxide (CO2), Temperature, Humidity, Dew point and Wet Bulb


  • Checks for Carbon Dioxide (CO2) concentrations from 0 to 6000ppm
  • Measures temperature from -4 to 140°F (-20 to 60°C)
  • Measures relative humidity from 10 to 95%
  • Calculates Dew Point and Wet Bulb
  • Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor
  • Continuous (20,000 sets) or manual (99 sets) data logging function
  • Data hold, Max/Min with time stamp, Alarm and auto power off
  • Easy calibration in fresh air
  • 1 year warranty
  • Comes complete with:
    • 6 AAA batteries
    • RS-232 cable
    • Windows compatible software

Indoor air quality is important for a healthy and efficient work environment. With high CO2 levels people work less efficiently, are in a more drowsy state and can experience headaches. Humidity control is also important, where low humidity can cause dry skin and high humidity can cause the growth of mold or mildew. Temperature can also affect how people work and is the most important factor in over all comfort.

This meter features the ability to test and record all of these parameters up to 20,000 sets of data. This makes it extremely useful for monitoring areas such as schools, hospitals, greenhouses, residential houses, warehouses, offices and anywhere else that large amounts of CO2 are created.

This recorded information can then be downloaded to a PC with the included Windows compatible software which analyzes and organizes data. The sensor is attached to the meter by a coiled cable making it easy to check air inside of ducts, vents, crawl spaces or any other hard to reach area. The EA80 Indoor Air Quality CO2 Data Logger User Manual is attached to this page to answer any further questions.


  • CO2: 0 to 6,000ppm
  • CO2 Resolution: 1ppm
  • Temperature: -4 to 140°F (-20 to 60°C)
  • Temperature Resolution: 0.1°F/°C
  • Humidity: 10 to 95%
  • Humidity Resolution: 1%
  • Data logging: Continuous: 20,000 sets/Manual 99 sets
  • Dimensions: 5.3 x 2.8 x 1.2" (135 x 72 x 31mm)
  • Weight: 8.2oz (235g)

Unit Ship Weight: 1.5 lbs

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