SONA is an Oil field electrical company that also manufactures power distribution panels that incorporate a illuminated fault indication feature. We offers 3 types of panels, the HT34, HT36 and a larger 100A HT100. These panels have proven to be a valuable addition in preventing discharge pumps, and waterline freeze ups while the 100A can be used for multipurpose applications as well as the main power source for a number of heat-trace panels. With illuminated LED fault indication, they can easily be monitored in the field by the operator.