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Article | Green Intelligent Systems and Applications | Volume 6 - Issue 2 - 2026 | 231−243 | https://doi.org/10.53623/gisa.v6i2.1286
© 2026 by the author(s), and is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) License Creative Commons Attribution 4.0 International (CC BY 4.0) License

Validation of a Portable Resistive-Sensor Corn Moisture Meter against a Standard Grain Meter

Author(s): Subhan Fahmi Nasution ORCID https://orcid.org/0009-0001-7670-3402 , Sally Irvina Ritonga ORCID https://orcid.org/0009-0005-9091-7342 , Masherlina ORCID https://orcid.org/0009-0000-2802-159X , Amty Ma'rufah Ardhiyah Dalimunthe ORCID https://orcid.org/0009-0006-6182-518X , Abdul Floranda ORCID https://orcid.org/0009-0003-6236-0810
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Fakultas Vokasi, Universitas Sumatera Utara, Medan, 20155, Indonesia

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Green Intelligent Systems and Applications

Volume 6 - Issue 2 - 2026

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Measuring the moisture content of corn kernels was a critical aspect of post-harvest handling, as moisture content directly affected product quality and shelf life. This study validated a portable resistive-sensor-based instrument for measuring corn kernel moisture content by comparing its readings with those obtained using a standard grain moisture meter. The validation involved ten corn kernel samples with moisture contents ranging from 12% to 14% on a wet basis. Each sample was measured using both the standard moisture meter and the portable resistive-sensor instrument under identical conditions. Measurements obtained from the two devices were compared to evaluate their agreement using the Mean Absolute Error (MAE) and Root Mean Square Error (RMSE). The results showed that the portable resistive-sensor instrument achieved an MAE of 0.42% and an RMSE of 0.44% relative to the standard device. These low error values demonstrated that the developed instrument produced consistent measurements and accurately tracked variations in corn kernel moisture content. In addition to its measurement accuracy, the instrument offered several practical advantages, including a simple design, relatively low implementation cost, portability, rapid measurement, and suitability for on-site corn quality assessment. Overall, the resistive-sensor-based instrument provided an economical, practical, and readily implementable alternative for moisture measurement, with potential applications in supporting the drying and storage of agricultural commodities.

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SUBMITTED: 04 July 2026
ACCEPTED: 25 August 2026
PUBLISHED: 3 September 2026
SUBMITTED to ACCEPTED: 52 days
DOI: https://doi.org/10.53623/gisa.v6i2.1286

Cite this article
Nasution, S. F. ., Ritonga, S. I. ., Masherlina, Dalimunthe, A. M. A. ., & Floranda, A. . (2026). Validation of a Portable Resistive-Sensor Corn Moisture Meter against a Standard Grain Meter. Green Intelligent Systems and Applications, 6(2), 231−243. https://doi.org/10.53623/gisa.v6i2.1286
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