News — Sensor

Gas Sensing Applications

Gas Sensing Applications
We highlight the most popular gas sensing solutions across the industry and how they are used in their respected environments.

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CO2 Sensor Range: PPM and Percentage Compared

CO2 Sensor Range: PPM and Percentage Compared
Knowing the right CO2 range in ppm or percent CO2 makes it easier to choose a CO2 monitor or sensor.

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Altitude Compensation for CO2 Sensor Modules

Altitude Compensation for CO2 Sensor Modules

CO2 sensors use a barometer for altitude compensation to account for the change in barometric pressure. A customer called recently and said we had sold him a defective CO2 sensor module. He had calibrated it precisely at 0.0ppm (zero parts-per-million), took it outside, and the sensor read 335ppm. “Where do you live?” we asked. “Colorado,” he replied. It took a few minutes to explain, but in the end the customer understood that altitude makes a difference when you are measuring carbon dioxide levels. CO2 sensor modules are calibrated at sea level. Most are not designed to automatically compensate for changes...

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CO2 Sensor Calibration: What You Need to Know

CO2 Sensor Calibration: What You Need to Know
Why calibrate your CO2 sensor? All carbon dioxide sensors need calibration. Here's what you need to know.

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Carbon Dioxide Sensors Testing

Carbon Dioxide Sensors Testing

Carbon dioxide sensor testing is one of the many behind the scene tasks we perform every day at CO2Meter. I was looking online at a new consumer product designed to monitor CO2. The product was well designed. The sensor inside was small. I was sure our customers would like it. So I sent an email with a link to Ray Hicks, our Chief Engineer. I got short reply: “Know the product, it’s poor performing. We tested it, but it’s not stable, I have a dozen of those CO2 sensors in a box on the shelf.” What many of our clients...

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