Paired Robot–Hanna HI 9829 Water-Quality Dataset from a 30-Day Intermittent Air-Gap Sensing Deployment

This dataset contains 6000 temporally paired water-quality measurements acquired during a 30-day experimental deployment of an automated SCARA-based intermittent air-gap sensing platform. The monitored parameters include temperature, pH, and turbidity, measured using low-cost sensors integrated into the robotic end-effector and compared with corresponding readings obtained using a Hanna HI 9829 multiparameter reference probe. One paired robot–reference observation was obtained during each scheduled measurement cycle, with an acquisition interval of approximately 7.2 min. During the comparison events, both sensing systems were immersed to an approximate depth of 10 cm and positioned approximately 30 cm apart within the same experimental tank. The deposited records include timestamps, reference-instrument readings, raw robotic measurements, median-filtered robotic values, and the paired differences used for the statistical analyses. The dataset supports the results presented in the manuscript “Automated Intermittent Air-Gap Sensing via a SCARA Robot for Process Control in Bioactive Water Systems.” It enables reproduction of the reported mean absolute error, root mean square error, bias, standard deviation of paired differences, and Bland–Altman limits of agreement for temperature, pH, and turbidity. The observations represent serial measurements acquired throughout the deployment and may therefore exhibit temporal autocorrelation. The repository is intended to improve methodological transparency, facilitate verification of the data-pairing and preprocessing procedures, and support reproducibility of the agreement analyses reported in the associated study.