The AquaSmart 5 is a premium automatic solar controller with temperature adjustment, Heating, Cooling & Standby mode features. The current detection unit is fitted with on the AUX power socket; the solar pump can only operate if the current load on the AUX socket is within an operating range. A remote roof temperature sensor can also be used.
the Aquasun 2 is an entry level automatic solar controller with temperature adjustment, manual mode and winter mode features. Mode of operation and the temperature limit setting are retained after a power outage.