Battery-powered NDIR CO2 sensor takes up to 20 readings per second

May 16, 2017 // By Julien Happich
Gas Sensing Solutions (GSS) Ltd has developed a LED-based Non-Dispersive InfraRed (NDIR) absorption sensor that can detect CO2 levels multiple times per second.

Taking up to 20 readings per second, the SprintIR6S has a response time that no other NDIR sensor can match and are the only NDIR CO 2 sensors that can be powered by batteries, claims the manufacturer. GSS says this breakthrough comes from the use of solid state mid-range IR LEDs specifically tuned to emit just at 4.2 to 4.4 microns (the absorption range of CO 2), making them highly energy efficient, while minimizing sample volume down to 2ml. 

Applications for this new class of ultra-fast CO 2 sensors include health where they can capture rapidly changing CO 2 concentrations in the breathing cycle to provide diagnostic information, which can be used in fitness testing, breath analysis/measurement, capnography, sports science and veterinary to name a few.  In Industrial Health and Safety applications, such as factories where CO 2 is used for modified atmospheres to delay packaged food from spoiling, they can provide ultra-fast detection of rising CO 2 levels. At less than a cubic inch (23.8mm in diameter and 24mm tall), the SprintIR6S operates at between 3.25 and 5.5V, with a power consumption of only 35mW. A single lithium cell can power a SmartIR sensor for up to ten years. The SprintIR6S is available in measurement ranges from 0% to 100%.

Gas Sensing Solutions -