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Sensor Type
Carbon Dioxide
Temperature / Freeze
Tool Type
Temperature Measurement
Battery Operated
LCD Display
# of Buttons
> 10 Buttons
Ease of Installation
Beginner (Installs < 10 minutes)
Extech Instruments
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Measures Carbon Dioxide, Temperature, Humidity, Dew Point and Wet Bulb
Extech Instruments EA80 EasyView Indoor Air Quality Meter/Datalogger
Extech Instruments EA80 EasyView Indoor Air Quality Meter/Datalogger
Extech Instruments EA80 EasyView Indoor Air Quality Meter/Datalogger
Item# 90250
Price: Normally $789.99 
Hot Deal $650.58
Free shipping on orders over $175 - See Details


  • Checks for Carbon Dioxide (CO2) concentrations
  • Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor
  • Continuous (20,000 sets) or manual (99 sets) datalogging
  • Data hold, Max/Min with Time stamp, and Alarm
  • Easy calibration in fresh air

Essential Info

The Extech Instruments EA80 EasyView Indoor Air Quality Meter/Datalogger measures Carbon Dioxide (CO2 , ppm) levels, ambient Temperature and Relative Humidity (%RH). Up to 20,000 readings can be logged by the meter and later transferred to a PC using the RS-232 interface. Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor. Checks air quality in schools, office buildings, greenhouses, hospitals and anywhere that high levels of carbon dioxide are generated. With careful use, this meter will provide years of reliable service.


What's Included

  • (6) AAA Batteries
  • AC Adapter
  • RS-232 Cable
  • Instruction Manual
  • Windows® 95/98/NT/2000/ME/XP Compatible Software
  • Specifications

  • Display: LCD triple display.
  • Display Rate: One time per second.
  • Low Battery Indication: The picture is displayed when the battery voltage drops below the operating voltage.
  • Power Supply: Six (6) AAA-size alkaline batteries or Regulated AC adapter.
  • Battery Life: Approx. 8 hours by using alkaline batteries (without backlight or Alarm function). If datalogging over a long period of time, use an AC adapter.
  • Manual Data Memory Capacity: 99 sets.
  • Auto Datalogging Capacity: 20,000 sets (maximum 99 blocks)
  • Operating Temperature Range: 5°C to 50°C (41°F to 122°F)
  • Storage Temperature Range: -10°C to 60°C (-14°F to 140°F)
  • Operating Humidity Range: 10%RH to 90%RH, non-condensing.
  • Storage Humidity Range: 10%RH to 90%RH, non-condensing.
  • Dimensions: 158 (L)x72(W)x35(H)mm, (6.22"x2.83"x1.38")
  • Weight: approx. 255g (including batteries)

    CO2 Specifications:
  • Sensing Range: 0 to 6000ppm
  • Sensing Resolution: 1ppm
  • Accuracy: @ 101.4 kPa (29.92 inHg) and @ 25°C(77°F) ±3% of reading or ±50ppm, whichever is greater
  • Sensing Method: Dual wavelength detector with non- dispersive infrared (NDIR) sensor
  • Gas Sampling Mode: Diffusion
  • Warm up time: 10 seconds
  • Response time: < 10 minutes in still air
  • Temperature Coefficient: Add ±0.36% of reading per °C (±0.2% of reading per °F) away from calibration temperature
  • Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
    Manufacturer contact information: Extech Instruments Corp, Tel: (781) 890-7440 Ext 200


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