Contrel Elettronica S.R.L. Insulation Monitoring Device HRI-R40 Contrel Elettronica Analyzer / Meter / Transformer / Earth Leakage Relay / Alarm Indicator / Expansion Module / Multimeter / Insulation Controller / Insulation Monitor Electrical (Sensor, Switch, Relay, Controller, Actuator, Module, Controller, Lidar, Proximity, Limit Switch, Encoder, CanOpen, IO-Link, Transmitter, Recorder, Display, Transducer, Vision Camera, 3D Camera, Artificial Intelligent Sensor/Controllers etc) Selangor, Malaysia, Kuala Lumpur (KL), Shah Alam Supplier, Suppliers, Supply, Supplies