Extech CO100 Desktop Indoor Air Quality CO2

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Measures Carbon Dioxide (CO2)

The CO100 is a desktop indoor air quality CO2 monitor that measures carbon dioxide concentrations (CO2) from 0 to 9,999ppm, air temperature and humidity. With user programmable visible and audible CO2 warning alarm. Meter has a maximum/minimum CO2 value recall function. Maintenance free NDIR (non-dispersive infrared) CO2 sensor. Complete with Universal AC adaptor.

CE   1 Year

PDF Logo     Extech CO100 datasheet
PDF Logo    Extech CO100 User Manual


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The Extech CO100 Carbon Dioxide (CO2) Monitor is designed for air quality control and health control by measuring Carbon Dioxide level in areas where CO2 could be a concern. The measured CO2 value in ppm (parts-per-million), Temperature, Humidity and Time will be displayed on the LCD along with three CO2 status indications: Good (0 to 800ppm), Normal (800 to1200ppm), Poor (>1200ppm). An acoustic alarm sounds when the CO2 level exceeds a defined level. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

Desktop Indoor Air Quality CO Features:

  • Checks for Carbon Dioxide (CO 2 ) concentrations
  • Maintenance free NDIR (non-dispersive infrared) CO 2 sensor
  • Indoor Air Quality displayed in ppm with Good (0 to 800ppm) Normal (800 to 1200ppm) Poor (>1200ppm) indication
  • User programmable Visible and Audible CO 2 warning alarm

Extech CO100 Specifications:

Function Range Resolution Accuracy
CO2 0 to 9999ppm 1ppm ±75 ppm or ±5% of reading
Temperature 23 to 122°F 0.1° ±1.5°C/2.7°F
(-5°C to 50°C)
Humidity 0.1 to 90.0% 0.10% ±5%
  • Display:  LCD with backlighting
  • Sampling Interval:  2 seconds
  • Overload Indication:  “-OL-”
  • Sensor Type CO2:  NDIR (non-dispersive infrared) technology
  • Operating Conditions:  -5°C to 50 °C at < 90 % RH
  • Storage Conditions:  -5°C to 50 °C at < 90 % RH
  • Power Supply:  110V~230V AC, output 6.0V DC ≥ 500mA (supplied)
  • Dimensions / Weight:  117 x 102 x 102mm; 204g


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