The SolarTouch SL3 model is the complete solution for residential and swimming pool solar heating systems. It has four relay outputs. The first output controls the flow of water between the collector and the reservoir, activating a pump so that the temperature difference between these points does not exceed the set value. The second and third outputs can be independently configured to drive support (heat pump, electric or gas). The fourth output can function as a third support, as recirculation or even filtering water in swimming pools. It has an event schedule for system deactivation, support activation or filtering at scheduled times. It has a 3.5” LCD display with touchscreen interface and clean design for residential use.