<![CDATA[Tofu industry produce waste liquid organic in large volumes that have the potential pollute environment If no processed optimally. Conventional monitoring that relies on manual observation is assessed not enough effective and vulnerable to inaccuracy. Research This aim for design and implement Internet of Things (IoT) based monitoring system for monitor key parameters waste liquid know in real-time. System This integrates temperature, TDS (Total Dissolved Solids), and turbidity sensors connected with ESP32 microcontroller. The data obtained sent to the IoT platform for can monitored online. Test results show that system succeed detect parameter changes in accurate TDS value increases from 212 ppm (0% waste) to 1025 ppm (100% waste), turbidity increased from 1 NTU to 97 NTU. This result prove that developed monitoring system capable give accurate real-time information, so that can increase effectiveness processing waste and support practice industry sustainable.]]>
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