Test-all iv - 4 pair wire cable tester

Test-all iv - 4 pair wire cable tester

Designed to test copper wire installations for voice and data networks.
Unit has three test modes - Pair Voltage Test which indicates voltage on cable pairs/Tone Mode which allows a warble on pairs 1 - 4 or all pairs/ Continuity Test that indicates a short, open, or reversal on cable pairs 1 - 4.