Easy to see LED Color diagnostic light make troubleshooting common problems on single telephone lines a breeze. Checks for reversed lines, presence of voltage on the line and dead lines. Red light means reversed polarity. Am...

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Product Review

Easy to see LED Color diagnostic light make troubleshooting common problems on single telephone lines a breeze. Checks for reversed lines, presence of voltage on the line and dead lines. Red light means reversed polarity. Amber light means AC voltage on line. Green light means circuit OK; No light means a dead line.

  • Easy to see LED Color diagnostic light make troubleshooting common problems on single telephone lines a breeze.
  • Checks for reversed lines, presence of voltage on the line and dead lines.
  • Red light means reversed polarity.
  • Amber light means AC voltage on line.
  • Green light means circuit OK; No light means a dead line.

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