NEXUS P20: Electronic regulator for controlling the ON/OFF electronic expansion valve with 230/110/24 VAC or 24 VDC coil, with integrated connectivity functions through the MyPego app. Manages the most common ON/OFF electronic expansion valves for controlling evaporator overheating. NEXUS S27: Electronic regulator for controlling the motorized electronic expansion valve, with integrated connectivity functions through the MyPego app. Manages the most common bipolar stepper electronic expansion valves for evaporator overheating management.