... conponents,such as voltage indicator,heater,short circuit and earth fault indicator,blocking magnet,Led light, ... and humidity controller,etcShort Circuit & Earth Fault Indicator DJ-3100General Information The short circuit & earth fault indicator DJ3100 is ... circuit alarming current: 150A to 2000AEarthing alarming current:10A ,20 A,30A,40A,50A,60A+-1Temperature range : -15 to +60Humidity: <=95%Earth ...