The function of the controller is based on the heating / adjustment curve, which is obtained by manually entering the points containing the expected temperature and reference temperature, selecting the finished curve or changing the function to the room control. The controller maintains the temperature at the source of heat corresponding to the reference point (eg outdoor or indoor temperature) entered during configuration. The adjustment algorithm greatly contributes to reducing heating costs, while providing full comfort for room or weather regulation. For correct operation, the regulator uses two sensors, the existing connection cable can be extended to 30 m with a conductor with a cross-section of 0.5 ÷ 2.5 mm2. The reference temperature sensor can be replaced with a standard resistor, which results in a single sensor as in classical temperature control. The regulator can also be an excellent solution wherever you want to be sure that the refrigerant or heat is circulating, for example, but also where the right temperature difference is required to ensure optimum conditions with maximum cost savings, eg hot circulation domestic water. Replacing one temperature sensor with a standard resistor causes constant adjustment around one point, preserving the set curve, approximated by the entered points. Replacing one temperature sensor with a potentiometer with similar characteristics converts the universal controller into a classic temperature controller, with adjustable difference by curve and hysteresis. This allows for the control of, for example, the heat source in such a way that its temperature is greater than the set differential by covering eg losses to the environment through windows,