Extech Desktop Indoor Air Quality CO2 Monitor

Extech Desktop Indoor Air Quality CO2 Monitor


The Extech desktop Indoor Air Quality CO2 Monitor measures carbon dioxide, air temperature, and humidity.


  • User programmable visual and audible alarm
  • Maintenance free non-dispersive infrared CO2 sensor
  • Max/min CO2 value recall function
Free Shipping on this product
Your Price
Drop ships from manufacturer

Shipping Information
Return Policy
Why Buy From Fondriest?


The Extech Desktop Indoor Air Quality CO2 Monitor checks for carbond dioxide concentrations through the maintenance free NDIR CO2 sensor. Indoor air quality is displayed in ppm with good (0 to 800ppm), normal (800 to 1200ppm), and poor (>1200ppm) indications. A programmable visible and audible CO2 warning alarm will alert users if extreme readings are detected. Measurement ranges are 0 to 9,999ppm for CO2, 14 to 140°F for temperature, and 0.1 to 99.9% for relative humidity.


Applications include air quality monitoring in schools, office buildings, greenhouses, factories, hotels, hospitals, transportation lines, and anywhere that high levels of carbon dioxide are generated.

Notable Specifications:
  • CO2 range: 0 to 9,999ppm
  • CO2 resolution: 1ppm
  • Temperature0 range: 14 to 140 °F (-10 to 60 °C)
  • Temp Resolution: 0.1 °F/°C
  • Humidity range: 0.1 to 99.9%
  • Humidity resolution: 0.1%
  • Dimensions: 4.3x4.1x2.4" (110x105x61mm)
  • Weight: 8.1oz (230g)
What's Included:
  • (1) Meter
  • (1) Universal AC adaptor
Image Part # Product Description Price Stock Order
Extech Desktop Indoor Air Quality CO2 Monitor CO100 Desktop indoor air quality CO2 monitor
Drop ships from manufacturer

Extech Desktop Indoor Air Quality CO2 Monitor Reviews

| Write a Review

Be the first to write a review

In The News

Flux towers track CO2 exchange between forests and atmosphere

Determining exchange rates of carbon dioxide between the earth’s forests and the atmosphere is turbulent business. Wind above forest canopies swirls as vortexes of air enter and exit stands of trees.  Across the globe, towers stand among the landscape, with sensors monitoring these eddies for carbon dioxide, water vapor and other gasses.  These so-called “flux towers” collect data on carbon dioxide exchange rates between the earth and atmosphere. Information gathered plays into the debate on the measurable effects of climate change. Carbon dioxide flows between the earth, atmosphere and ocean in an attempt to reach equilibrium. As automobiles and energy production facilities burn fossil fuels, more carbon dioxide joins to the mix.

Read More

Pulse Flow Brings Colorado River Delta Big Benefits

A few years ago, a pulse flow was released into the Colorado River Delta per Minute 319 of the U.S.-Mexico Water Treaty of 1944. The flow began March 23, 2014 and ended on May 18, 2014, pushing around 130 million cubic meters of water downstream. A few months after that, this magazine checked in with some of the scientists involved in monitoring the effects of the pulse flow. Investigators told us they had deployed more than 100 piezometers to study groundwater levels. Flow trackers were giving them discharge data and measurements on salinity were being gathered with conductivity probes. For gauging the impacts to waterfowl, the researchers were using stereos to send out mating calls while listening for responses. But there was so much more data collection underway than we knew.

Read More

Lake Erie Infographic

It’s pretty easy to find a Lake Erie infographic these days. And that makes sense, because the water body is an incredibly important one. We laid out some of the dynamics that make it that way in our most recent print edition, published in fall 2016 . Those include its shallow depth, a factor that makes it one of the most productive Great Lakes both for fish and algae. Another is the population surrounding Lake Erie. Did you know that the Erie watershed has nearly 12 million people? That makes it the most populated area of the region! In our latest edition, the Lake Erie infographic serves as a nice background for readers who may be unfamiliar with the lake. It also helps to introduce our coverage of Lake Erie’s western basin.

Read More