Gandhi, VaibhavVaibhavGandhiHeda, ShashankShashankHedaAnand, RishabRishabAnandZarin, A. S.A. S.ZarinUpadhyay, AbhishekAbhishekUpadhyayChakraborty, Arup LalArup LalChakraborty2025-08-302025-08-302016-02-16[9781467368988]10.1109/ICMAP.2015.74087132-s2.0-84964341622https://repository.iitgn.ac.in/handle/IITG2025/21955This work reports a real-time, non-invasive, compact and field deployable CO2 sensor using tunable diode laser spectroscopy (TDLAS). Direct detection and 2f-WMS was used to measure the gas parameters utilizing a low power vertical cavity surface emitting laser (VCSEL) emitting across 2003.5nm where CO2 has a strong absorption line. A Raspberry Pi microcontroller along with a serial analog-to-digital (ADC) convertor was used for data acquisition and processing to make the system compact and field deployable.falseConference Paper16 February 2016474087130