Extech CO250 Portable Indoor Air Quality CO2 Meter
The Extech Portable Indoor Air Quality CO2 Meter measures carbon dioxide, temperature, humidity, dew point, and wet bulb.
- User programmable audible alarm
- Built-in RS-232 interface for capturing readings on PC
- Maintenance free non-dispersive infrared CO2 sensor
|CO250||Portable indoor air quality CO2 meter|
|Usually ships in 1-2 weeks|
The Extech Portable Indoor Air Quality CO2 Meter checks for carbon dioxide concentrations and calculates statistical 8 hour and 15 minute time weighted averages. The maintenance free NDIR sensor has measurement ranges from 0 to 5,000ppm for CO2, 14 to 140°F for temperature, and 0.0 to 99.9% for humidity.Programable audible alarms will alert users if readings detect a high concentration of CO2.
The built-in RS-232 interface captures readings to transfer to a PC. The data acquisition software and included cable record and document CO2, humidity, and temperature data. Applications include checking air quality in schools, office buildings, greenhouses, hospitals, and anywhere that high carbon levels of carbon dioxide are generated.
- CO2 range: 0 to 5,000ppm
- CO2 resolution: 1ppm
- Temperature range: 14 to 140 °F (-10 to 60 °C)
- Temperature resolution: 0.1 °F/°C
- Humidity range: 0.0 to 99.9%
- Humidity resolution: 0.1%
- Wet bulb & dew point: calculated
- Dimensions: 7.9 x 2.7 x 2.3 (200 x 70 x 57mm)
- Weight: 6.7 oz. (190g)
- (1) Meter
- (1) Software and cable
- (4) AA batteries
- (1) Carrying case
In The News
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
River management is inherently complex, demanding mastery of constantly dynamic conditions even when the climate is stable. As the climate changes, however, river management will become even more difficult and unpredictable—and old models and techniques are likely to fail more often.
Now, researchers from around the world are calling for attention and change to how we manage and model the rivers of the world. Dr. Jonathan Tonkin , a Rutherford Discovery Fellow at New Zealand's University of Canterbury , spoke to EM about why he is arguing that current tools for river management are no longer enough as even historical baseline river ecosystem conditions themselves are changing.
This summer a new way to learn about water recreation—and environmental stewardship—paddled into Ohio. With the help of the Toledo Metropolitan Area Council of Governments (TMACOG) , the US Environmental Protection Agency's (US EPA's) Urban Waters Program brought the Wilderness Inquiry Canoemobile “floating classroom” to Toledo for a few days.
TMACOG Water Quality Planner Sara Guiher spoke to EM about the programming and the experience.
“In August of 2018 we spoke with a representative from US EPA Urban Waters,” explains Guiher. “We received funding through them to bring programming to the area focused on urban water resources. The person that we talked to from US EPA suggested Canoemobile, which we had never heard of.Read More