We recommend Resol Controllers.... not the cheapest controller available but they are high quality and dependable with a 100% reliability rate - they are not surprisingly, the market leader.

Various Resol Controllers available, with complex control mechanisms however the main products we supply are listed below.

If your control requirement is not covered, please feel free to contact us, and if we can we will help.
Resol A -

Resol Delta Sol B

With or Without pump speed control (Price difference).

Temperature Sensors are provided with each controller. the temperature sensor sleeve is 6mm diameter - to match the copper tank and evacuated tube panel temperature ports.