The most important and expensive asset in power transmission and distribution networks is the power transformer,so there must have a well-defined maintenance strategy from commissioning to withdrawal so as to ensure an appropriate level of reliability throughout the operational life of the transformer.Although most of the Dissolved gas analyzer continues to be done in the laboratory,now vasthi provides the online real-time DGA monitoring with the latest sensor technology and IOT solution, as it allows for detection or diagnosis of the faults throughout the life of the power transformers. Users can log in their individual ID and they can have pre alerts about H2 & Moisture,Oil Temperature.