The compact RTUs of the SIMATIC RTU3000C arrangement are energy-self-sufficient low-power inaccessible terminal units (RTUs). They empower the observing of the foremost inaccessible measuring focuses – indeed in areas with no neighborhood control supply or hard-wired communication framework. Much appreciated to their optimized vitality utilization, the compact SIMATIC RTUs require no outside control source. They supply themselves either from battery or aggregator with sun based board