HUUM UKU Local Main Module is the central control brain of your UKU Local sauna system, coordinating heater operation so every session feels precise, safe, and effortless. Designed as a direct replacement main module, it restores full functionality when the original control electronics become unreliable or fail, ensuring your HUUM sauna heater responds accurately to the settings you select. The module communicates with the user interface and sensor network to manage temperature, session duration, and other programmable functions, maintaining a consistent climate from warm-up through cool-down. Engineered with high-quality components and robust circuitry, it is built to withstand the elevated temperatures and humidity common in sauna environments. Installing this genuine HUUM module helps preserve system safety, protects your investment, and keeps your sauna ready for daily use with dependable, responsive control.