Pressure based controller designed for refrigeration plants that require suction and discharge pressure control. Featuring 7 outputs of control, 6 digital and 1 analog for variable speed control, in addition 3 inputs, one for pressure transducer (4~20mA), one for temperature sensor and a digital input. When pressure and temperature sensors are used it can measures subcooling and superheating of the line. Working in pairs, allows to control up to 5 sets of fans and compressors simultaneously. Versatile, it offers 4 operating modes: linear, rotation, capacity or individual.