The KGD - YQ - 502 Soil Carbon Flux Analyzer is used for soil carbon flux monitoring.

The KGD - YQ - 502 Soil Carbon Flux Analyzer measures the concentration of CO₂ by using Non - Dispersive Infrared (NDIR) gas analysis technology, and measures the concentrations of CH₄ and N₂O by using Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology. The instrument is small - sized and portable, which makes it convenient to obtain data from multiple different points, and complete measurement work at different spatial and height limits. It supports long - term, continuous and accurate measurement. It is mainly applied to soil carbon flux monitoring, forest carbon flux monitoring, greenhouse gas emission monitoring, air quality monitoring, urban polluted gas emission monitoring, fixed pollution source emission monitoring; as well as relevant research in environmental science, agronomy and forestry in colleges and universities.

• It can measure the fluxes of CO₂, CH₄ and N₂O in soil at multiple points, and supports continuous and long - term monitoring.
• The Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology is used to measure ultra - low concentrations of CH₄ and N₂O.
• It can display gas concentration values and monitoring curves in real - time, and supports the storage of measurement data for up to 3 months.
• It has low power consumption, and the battery can supply power for ≥ 8 hours; it has multiple communication interfaces; it has stable performance and a long service life.
• It is small - sized and portable, making it easy to obtain data from multiple points at different spatial and height limits.
• The Non - Dispersive Infrared (NDIR) gas analysis technology is used to measure the concentration of CO₂, and it is not affected by the ambient CO₂ concentration.