... indicator,indicator,high voltage live display device,high voltage display,led display,voltage indicator,device indicator,transducer indicator,display.Model:DXN6-T High ... controlled by one high volt signal,while,its circuit system is stand-alone and not interfered one another.Just ... ) JB/T10305 (3.6KV~40.5KV high volt equipment indoor organic material post insulator’s technical condition) GB/T7354 ...