Scavenger Trafo-Scope
The worlds only DSO approved self-powered transformer capacity monitor

Understand the capacity of your grid assets for ultra low cost

The Trafo-Scope is a battery powered device that measures transformer current and temperatureWith its embedded IoT communications technology, the Trafo-Scope has a battery life of 10+ years. This light touch, easily installed solution gives instant visibility of the grid assets capacity and load. 

VT’s self-powered transformer monitoring solution provides continuous real-time monitoring of transformer phase current, capacity and temperature. This provides operators with the real-time accurate field data which is used to make more optimised and informed capacity planning and investment decisions. This is vitally important with the significant expected increase in demand from the electrification of heat and transport over the next decade. 

The Trafo-Scope has been designed to monitor phase current and temperature only. It does not require a voltage connection or an external power source. As a result it can be installed within minutes. It has been designed for safe and easy install, requiring no physical contact with the transformer. No tools or asset down time is required. Battery life is 10+ years. 

The Trafo-Scope is deployed across LV distribution assts to provide continuous remote monitoring of capacity and transformer loading. Feeding data directly into the Electron Cloud™, the solution helps manage the transformer health status in real time through machine learning and alert of performance anomalies. This delivers better and more efficient operational and maintenance outcomes.

  • Multiple monitoring parameters: phase current, temperature, total kVa, imbalance, transformer size, capacity over/under utilisation, transformer location, performance anomalies
  • Alerting on a per transformer and fleet wide basis
  • Analyse and predict usage allowing planning for capacity densification corresponding to current and anticipated demand
  • Cloud based automated alerting and reporting for real time fault monitoring and systematic grid load and capacity analysis
  • Safe & simple installation (<5 min) No tools, downtime or contact with transformer required
  • Neodymium magnets for easy mounting (4kg pull force)
Trafo-Scope
Measures Current & Temperature

Measures Current & Temperature

Installed in minutes

Installed in minutes

Embedded IoT Technology

Embedded IoT Technology

Safe & Easy to Install

Safe & Easy to Install



  • Highly accurate (+ 0.5%)
  • 4kg Pull Force Neodymium magnet attachment
  • IP67
  • CE marked
  • EMC EN61326 1 2006 compliant
  • 1000V CAT III, 600V CAT IV
  • Voltage insulation: Coil 3000V; Cable 1000V
  • Thermoplastic rubber flame retardant UL 94 V 0 rated coil & cable casing
  • 10 year embedded battery life – no local power supply required
  • Safe and easy installation: no tools, downtime or physical contact with transformer required