Accutector™ Ground Fault Monitoring System Model AT-9000 is an ideal ground fault monitoring and temperature monitoring system for synchronous generators and large motors. As an easy drop-in replacement for the legacy Rotector Model AS-9000, it detects insulation faults, allows for trend analysis with continuous insulation resistance measurement, and enables scheduling of repairs during low-demand periods to minimize downtime. Temperature monitoring helps identify thermal limitations and facilitates quicker starts. Location factor measurement provides location information for insulation faults. It can be easily installed on existing machines, replacing the obsolete Rotector AS-9000. Upgraded features include improved diagnostics, USB port, and user-friendly software for configuration and data collection.