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Continuity Tester


Part Number: EXT-CT20

The Extech CT20 Continuity tester is a must have for one person cable and wire troubleshooting.

  • Local continuity checking is accomplished by a bright flashing LED and loud pulsating beeper
  • Remote continuity with the use of the remote probe, it does not tie-up two people when identifying and labeling long distance wire/cable runs
  • Flashing remote probe - two lead, bi-color (red/green) LED probe allows a single user to identify up to three wires or cables at a time for correct labeling with only one trip to the other end location - cuts down on multiple trips back and forth
  • Lightweight and pocketsized, clips on and hangs from the cable(s) under test without falling off
  • Great from Electricians and Helpers, Cable TV and Audio System Installers, Alarm Technicians, Plumbers, HVAC Installers, Auto Repair Technicians, Carpenters, Handymen, and Do-it-yourself Homeowners

Includes carry pouch and user manual.
QTY: 1 Tester, Pouch, and Remote light

For more information, please visit this product's DATASHEET.


Phone or Fax 8:30 AM - 6 PM PST Monday - Friday; 10:00 AM - 4:00 PM Saturday - Sunday
425-641-7275 FAX: 425-641-7303