Differential thermostat controller for solar/Pool hot water heating pump 110/220

M-SPC1 Differential thermostat controller for solar/Pool hot water heating pump High quality productVery simple to install For indoor or outdoor useExcellent for central water heating systems in a residential buildingOrder Option: for mains 110Vac or 220Vac systemWhen the unit is assembled outside, a waterproof case must be providedPump test switch NTC Sensors are included PCB Size: 100mm*59mm Green double-sided HAL,FR4 1.6MM

JY1-2 4pcs Terminal Blocks All-Copper Conductive Material 660V 24A Rating

Material:copper. All-Copper Construction: Features high conductivity and durability with nickel-plated FOR SURFACE for long-lasting performance. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.