Dual Phone Line Tester, LED w/Pocket Clip

Dual Telephone Line Tester, Display Tri-color LED's Indicate Line Status, Application Tests the Status of Single or Dual Phone Lines, Features Pocket Clip, Measures Measures the Integrity of Single or Dual Telephone Lines i.e., Reverse Wiring, AC Voltage Present on the Line, Line is Dead, Adapter Type 2.75" Flexible Lead with Standard RJ11 Phone Plug, Connector Type RJ11, Displays LED's, Line Polarity Indicator Reverse Wiring Indicator, Standards CE, cULus