GlobeCore can supply an online moisture + temperature probe with a local display for integration into a mobile transformer oil purification plant. On GlobeCore CMM mobile purification plants, the optional moisture probe provides continuous transformer-oil moisture and temperature measurement, and the plant can be supplied with a display showing moisture in ppm. For your application, I’d recommend an online “moisture-in-oil” sensor that measures water activity (aw) + oil temperature and calculates moisture in ppm (this is the standard approach used in GlobeCore’s TOR moisture measurement concept).