Extech CO250 Portable Indoor Air Quality CO2 Meter
Features
- User programmable audible alarm
- Built-in RS-232 interface for capturing readings on PC
- Maintenance free non-dispersive infrared CO2 sensor
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
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. Programmable audible alarms will alert users if readings detect a high concentration of CO2.
Data Use
The built-in RS-232 interface captures readings to transfer to a PC. The data acquisition software included cable records and documented CO2, humidity, and temperature data. Applications include checking air quality in schools, office buildings, greenhouses, hospitals, and anywhere where 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
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 MoreSargassum Surge: How Seaweed is Transforming our Oceans and Coastal Ecosystems
Until recently, Sargassum –a free-floating seaweed–was distributed throughout the Sargasso Sea , the north Caribbean Sea, and the Gulf of Mexico. But in the space of a decade, this seaweed has, as one scientist remarks , “Gone from a nonfactor to the source of a terrible crisis.” Driven by climate change, anomalous North Atlantic Oscillation in 2009-2010 and a glut of anthropogenic pollutants, sargassum has proliferated. Seasonally recurrent mats as deep as 7m now bloom in the “Great Atlantic Sargassum Belt” (GASB), which covers areas of the Atlantic from West Africa to the Caribbean Sea and Gulf of Mexico. Every year, millions of tons wash up along the shores of more than 30 countries . Dr.
Read MoreGreat Lakes Research Center: Designing Targeted Monitoring Solutions
According to the National Oceanic and Atmospheric Administration ( NOAA ), the Great Lakes have more miles of coastline than the contiguous Atlantic and Pacific coasts combined and contain 20 percent of the world's freshwater, making it a critical region to protect and conserve. Continuous monitoring and data-informed resource management are key components of managing waters in the region. Hayden Henderson, a research engineer with the Great Lakes Research Center (GLRC), designs and deploys monitoring platforms throughout the Great Lakes. With a background in environmental engineering, Henderson enjoyed the challenge of creating systems and making them work to obtain difficult, remote measurements.
Read More