The Extech Humidity/ Temperature Datalogger simultaneously displays CO2, temperature, and relative humidity.
The Extech CO2/Humidity/Temperature Datalogger features a maintenance free dual wavelength non-dispersive infrared CO2 sensor that checks for carbon dioxide concentrations. The triple LCD simultaneously displays CO2, temperature, and relative humidity. The datalogger date/time stamps and stores readings on an SD card for easy transfer to a PC. Selectable data sampling rate range from 5, 10, 30, 60, 120, 300, and 600 seconds or auto.
Applications include monitoring air quality in schools, office buildings, greenhouses, hospitals, or anywhere that high levels of carbon dioxide are generated.
|Image||Part #||Product Description||Price||Stock||Order|
|SD800||Carbon dioxide/ humidity/ temperature datalogger||
|Drop ships from manufacturer|
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
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
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