Low cost CO₂ sensing: A simple microcontroller approach with calibration and field use.

ABSTRACT: Understanding the spatial variability of gaseous carbon flux at a landscape scale requires intensive monitoring campaigns necessitating significant and perhaps prohibitive financial investment. Commercially available CO₂ sensors may only partially fulfil the requirements of the researcher, thereby generating inadequate data. In this context we present the fully replicable designs for a low-cost, microcontroller-based gaseous CO₂ concentration data logger suitable for field deployment at scale. It demonstrates a post-calibration accuracy of 96-99% and large onboard data storage for data collected at user-defined intervals. The sensor can be powered via USB or batteries, assembled by novice users, and produced for approximately £155. Post-calibration it was used to meas

SUBMITTER: Brown SL 

PROVIDER: S-EPMC9041228 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature