220v controller for the solar hot water heating system suitable for 1 collector array * 1 storage tank * 1 pump and auxiliary heatingAppearance of controller 187mm*128mm*46mm1*Pt1000 sensor (less than 500 cel.degree) for collector (silicon cable less than 280 cel.degree) 2*NTC10K, B3950 sensor (less than 135 cel.degree) for tank, (PVC cable less than 105 cel.degree),Accuracy of temperature measuring: +/-2 Cel. DegreeRange of collector temperature measuring: -10 to 220 Cel. degree Range of…