★ The sensor precisely monitors the temperature change of the whole system, and cooperates with the control unit to guarantee a proper working environment for the heating elements and the correct customer setting temperature.
★ No mechanical switch is used, thus avoiding any problem caused by mechanical faults.
★ Avoiding any particulate conglomerating on sensors.
★ Dramatically reduce the number of unnecessary circulation cycles, which extends the life of circulating pump and use less energy.
