Grayfox® Underground Cable Sensor

Grayfox® is a cable grid sensor that employs rogowski-coils for non-intrusive current measurements. It is easily installed and automatically connects to GridGuardian® for instant-on functionality. By utilizing the cellular network, Grayfox® sends both measurement data and GPS information to GridGuardian®.

Grayfox® sensor for accurate underground cable monitoring

Our cloud-based monitoring and analytics system, GridGuardian®, works seamlessly with Grayfox® to form a powerful deep learning analytic system for fault location and predictive grid maintenance. With Grayfox®, Safegrid’s Intelligent Grid System® can locate faults with 100m accuracy on a map in just seconds and provide actionable data for predictive maintenance based on 24/7/365 partial discharge detection.

Safegrid’s Intelligent Grid System® is a stand-alone system that doesn’t require any downtime for installation and commissioning, making it easy and fast to install.

Grayfox® - a modern fault indication system
"Thanks to Safegrid system we were able to eliminate a potentially critical failure from our grid which could have escalated to a fault causing an outage to thousands of customers. We are grateful to Safegrids personnel for helping to draw our attention to this event and we are confident that these types of failures and anomalies will also be detected in the future by Safegrids Intelligent Grid System."
Taavi Tammeorg
Chief Specialist, Elektrilevi OÜ

Grayfox® - For Underground Cables


Grayfox® employs rogowski-coils for non-intrusive current and high-frequency transient measurements for screened cables.

Fast deployment:

Grayfox® is used for cable monitoring. It can be deployed in 30 minutes or less without the need for any alterations or system shutdowns, ensuring that your operations can continue uninterrupted. No configuration needed.

Sensitive and accurate:

Grayfox® has highly accurate and reliable high-frequency measuring technology up to 1 Mhz. Grayfox® can sense even minor grid anomalies with maximum accuracy and speed.

Wireless communication:

Grayfox® integrated wireless multi-provider cellular communication.

Grayfox® is already being used by utilities on four continents. Contact us today to learn more about Safegrid’s Intelligent Grid System® and how it can help improve your grid performance.