... voltage display,led display,voltage indicator,device indicator.Model:LB-1 High Voltage Electrified Display Device IndicatorOperating humidity:Daily average 95%,mo.average90 ... is mounted,combine a high voltage equipment with live display device.This voltage indicator type DXN6-T is a combination unit ... conform to the IEC61958-2000 Standard and National Standard. Display Device(LB-1)