The NDIR bundle N2O is made up of optimally matched thin film infrared emitters and a corresponding IR thermopile detector to measure nitrous oxide in gas mixes. The kit has a short delivery time and therefore achieves measurement results in a short time. This is especially an advantage for developers in research projects with a limited time span. The two-channel detector's optical filter has been optimized for the absorption spectrum of N2O (CWL: 4525 ± 20 nm / HBW: 83 ± 6 nm) and can provide important data, especially in the analysis of exhaust gases in the automotive, railway and marine sectors, the monitoring of industrial exhaust emissions and environmental monitoring.