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Reliable carbon dioxide and oxygen measurement and control is critical in many applications. When comparing gas measurement devices, vendors use the terms diffusion sensor and sampling sensor to differentiate between the two major types of gas sensors. Having a general understanding of these terms can help you better evaluate which sensor is right for your application. Diffusion Sensors All gas sensors are diffusion sensors. In fact, your nose is the perfect example. Like a mechanical gas sensor, your nose has a space inside it where it measures molecules of different gases diffused in air. Why is diffusion important? Diffusion sensors...

Everyone knows that people breathe in oxygen and exhale carbon dioxide, but how do you directly measure respiration at the cellular level? This was part of the problem faced by Dr. Nikolai Slavov and his team from the Departments of Physics and Biology and Koch Institute for Integrative Cancer Research at the Massachusetts Institute of Technology. Using CO2Meter’s iSense CO2 and Oxygen Monitor and Data Logger, the team was able to accurately measure the absolute rates of O2 uptake and CO2 synthesis in yeast cells as they both respire and ferment simultaneously. The data lead to the discovery that cell metabolism and physiology can vary,...

Most of us who live in the city think of soil as “dirt.” However, soil is actually a living environment of underground plants, animals, and microorganisms that, like humans, need food, water and oxygen to survive. Soil gas testing is the process of measuring oxygen, carbon dioxide, methane, radon, and other gases in soil. For example, large-scale composters monitor the gases inside long, narrow piles of plant material and manure called wind-rows. The right combination of moisture, temperature, oxygen and CO2 is required to feed the aerobic microbes that turn the materials into compost. Alternatively, biologists measure CO2 or methane...

“I never thought I would ever live near the beach. As a kid I hated when we went to the beach. Now, I can’t imagine living anywhere else”. Josh Pringle clearly loves Ormond Beach and all it has to offer. A 5 year resident of Florida, Josh recently signed on as CO2Meter’s Director of Marketing in the Ormond Beach office. Even after working for a large internet company, Josh knew that coming to CO2Meter would be a huge technical learning curve. “I learn new things every day. At the beginning my brain would hurt every night from learning so much...