E48ISA is a analog panel indicator (dimensions: 48×48 mm) with a 90 ° scale suitable for insulation resistance measurement. E48ISA is the ideal solution for any type of system, application or panel where there is a need to monitor the insulation of a D.C. line. It’s used for example in the marine sector. The input can be requested according to your needs (100 … 690V). The instrument is supplied with a scale made according to your display needs. It is also possible to apply red, or any color, marks on the scale by highlighting the desired scale points. In the version with SID option there are two relay outputs that can be used as alarms.