Soil and ground heat flux measurement is essential for understanding energy exchange between the surface, subsurface layers, and surrounding environment. In applications such as agriculture, geothermal studies, green roofs, bifacial PV systems, ground heat pumps, and construction foundation testing, heat transfer through soil directly influences thermal behavior, energy balance, and system performance. The EKO HF-01SG Soil & Ground Heat Flux Sensor is designed to measure this heat flow under real outdoor and buried conditions, providing reliable data for evaluating soil thermal dynamics. By installing the HF-01SG at selected soil depths or directly on ground surface layers, users can monitor heat flux variations caused by solar radiation, weather changes, irrigation, vegetation, surface coverings, and subsurface thermal storage. Its thin, compact design minimizes disturbance to the natural heat flow, while the rugged IP67 weather-proof construction supports stable use in harsh soil and outdoor environments. The sensor’s high sensitivity and fast response make it suitable for both short-term thermal behavior studies and long-term field monitoring. When used together with temperature sensors placed above and below the heat flux plate, the HF-01SG enables in-situ thermal conductivity evaluation using Fourier’s Law. This allows researchers and engineers to estimate how effectively heat is conducted through soil or ground materials under actual field conditions. The resulting data supports improved ground heat storage analysis, surface energy balance modeling, geothermal system design, agricultural thermal studies, and evaluation of insulation or ground-covering performance.
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How it works
