News — Sensor

Altitude makes a difference when you are measuring CO2 levels. CO2 sensor modules are calibrated at sea level, and are not designed to automatically compensate for higher altitudes. CO2 sensors need either a manual offset using a barometer or lookup table for altitude compensation, or a built-in barometric pressure sensor to automatically compensate for the change. Altitude Compensation: Identifying the Problem 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...

Following the manufacturer's proper oxygen sensor storage and operating conditions are critical to long sensor life.

CO2Meter has worked closely with universities nationwide that continue to use our sensor technologies to gather data for scientific research, discovery, and advancements.

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...

Hydrophobic filters use on our portable diffusion data loggers allows accurate measurement of CO2, in high humidity applications.