Table 6.

Accuracy analysis of water temperature, pH, DO, and EC, and salinity levels for in situ measurement.

Items	Accuracy Analysis
	Mean	Difference Range	MAE	RMSE
Temperature sensor	25.0951 °C	−0.31–0.34 °C	0.0961 °C	0.1178 °C
pH sensor	7.1755	−0.20–0.20	0.0640	0.782
DO sensor	9.5228 mg/L	−0.35–0.33 mg/L	0.0990 mg/L	0.1217 mg/L
EC sensor	0.7923 mS/cm	−0.18–0.18 mS/cm	0.0571 mS/cm	0.0694 mS/cm
Salinity estimation	464 ppm	−2–2 ppm	0.5337 ppm	0.7557 ppm