DUAL LINE PHONE TESTER

Gardner Bender Dual Line Tester Tool is for testing the condition of dual telephone line jacks. Multi-color LED indicator light alerts to correct line, reversed line, AC Voltage present and dead line. Bright LED's can easily be read of any angle. It's small size allows you to fit it in your shirt pocket. Dual telephone line tester that troubleshoots common problem conditions with standard single or dual-line telephone hook-ups. Compact unit easily plugs into any single or dual-line telephone jack. Tests for three wiring conditions: correct, reversed and AC voltage presence