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UltraTEV Detector™

Dual sensor Partial Discharge (PD) detection tool

The world’s best instrument for ‘first pass’ asset condition testing

Download sales brochure here:

UltraTEV Detector 1 UltraTEV Detector 2 UltraTEV Detector 3
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UltraTEV Detector 1
UltraTEV Detector 2
UltraTEV Detector 3


  • Identify faults BEFORE they lead to failures
  • Test for critical PD activity instantly
  • Detect surface AND internal PD activity
  • Essential personal safety device
  • Minimal training requirement
  • Low cost, high productivity


Dual Sensor Technology

  • Ultrasonic sensor detects PD activity beyond audible range
  • TEV sensor detects PD activity as transient earth voltage effects
  • Both sensors are calibrated to indicate instantly when PD activity is at a potentially critical level

Clear Display

  • Green LED indicates the asset is working normally
  • Amber LED indicates PD activity that requires more frequent monitoring
  • Red LED indicates PD activity that requires immediate investigation - and potential danger to personnel

Easy To Use

  • One button operation with instant start-up
  • Light, portable and ergonomically designed
  • Kit complete with carrying case, protective sleeve and mains battery charger


The UltraTEV Detector™ won the Queen’s Award for Enterprise: Innovation (the UK’s top industrial award), as a genuine technological breakthrough - the world's first dual sensor handheld PD instrument. It has transformed the ability to detect PD activity and won sales around the globe.

Many power asset owners issue UltraTEV Detectors™ as standard equipment for all personnel working with MV and HV equipment: as the most effective tool for identifying potentially damaging faults, and as a valuable aid to personal safety.

For more details please contact: 0800 028 7243 or email sales@eatechnology.com

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