Model SC1 is a standard controller for controlling a pump. It has an adjustable set point up to 40°C. The pump will turn ON when the Roof Sensor is > 7°C above the Pool Sensor and the Pool Sensor is below the set point. The pump will turn OFF when the Roof Sensor is < 2°C above the Pool Sensor or the pool sensor is at the set temperature. A pool thermometer is required to set the desired temperature.

Model SC2D is a microprocessor controlled unit having a digital display of Pool/Set/Roof temperatures with user selections. This unit has a 'Winter Mode' which is automatically selected when the sensors are turned OFF. All functions are selected by touch button control, they are : Manual/Auto; Sensor ON/OFF: Select POOL/SET/ROOF; Temperature UP or DOWN.Model

SC2DT has all the features of the Model SC2D with the addition of a time clock and a second power outlet for controlling the filter pump. The controller can be configured to operate the filter pump simultaneously or independently of the solar pump.

Model SC3D has all the features of the models above with additional features such as Sample & Hold temperature display.