Scavenger Dissolved Gas Analysis
State-of-the-art remote DGA

Remote low cost DGA analysis for all grid assets using IoT

VT have pioneered the democratisation of remote DGA analysis for low voltage distribution assets. For the first time, it is now feasible to roll out low cost solid state IoT enabled hydrogen sensing across distribution assets to provide the gold standard of asset health diagnostics.

We live in an era of growing demand for electricity, which makes understanding transformer health critical to reliably meeting customer demand, and avoiding disruption.

Hydrogen is generated when significant issues like overheating, partial discharge and arcing occur in transformers. Continuous and real time monitoring of hydrogen tracks and alerts operators to small problems before they become big problems. Hydrogen monitoring provides continuous real time data and is dramatically less expensive than installing multi-gas monitors.

VT Electron’s Hydrogen Sensing Monitors is a proven solid state sensor that’s small and compact. It delivers high accuracy with no requirement for ongoing calibration or maintenance (10 years+ guaranteed). This sensor has been designed to provide precision hydrogen measurement, at a lower cost (by thousands of euros). This solid-state sensing element is hydrogen specific and insensitive to other transformer gases. It can be immersed directly in the transformer oil during normal operation to measure hydrogen levels continuously. Using the same sensor we can also accurately monitor the in oil temperature. The IoT sensor has no moving parts and does not require carrier or calibration gases to maintain accuracy. 

  • Avoid faults– respond to asset issues well in advance and deploy proactive measures
  • Target maintenance only on assets that need it attention– stop arbitrary and wasteful maintenance programmes.
  • Avoid down time and customer minutes lost – know when problems are developing in advance
  • Understand the true capacity and health of the transformer
  • Unlock free additional capacity through VT Electron’s’ manufacturer approved re-rating models to re-rate transformers based on true health and load
  • Understand the true real time health of your assets – no more guess work
  • Enable condition based maintenance programmesInstallation without any downtime
Scavenger DGA
DGA Analysis

DGA Analysis

10 Year Guarantee

10 Year Guarantee

Oil Temperature Monitoring

Oil Temperature Monitoring



  • Precise Hydrogen Specific Measurements
  • Sensing device immersed directly in oil for hydrogen measurement
  • Functionality over a broad temperature range
  • High EMI/RFI rating
  • IP68 Ingress Protection.