If you require to detect cable faults on live cables, a mains blocking filter is available for the Sonel TDR-420 which will allow the meter to work with voltages upto 600VAC at 50/60Hz and 600VDC.

The blocking filter can also work with other handheld TDR (Time Domain Reflectometer) models such as the Bicotest T510 and T511 cable fault locators. Please contact us to discuss compatibility with other makes and models.

Product Features

  • 600VAC, 50/60hZ
  • 600VDC
  • Compatible with TDR testing with a 5Vp-p output pulse
  • Standard test meter 4mm connections
  • 1.5m Test Leads