or pair it with VDV500-123 Cable Tracer Probe-Pro Tracing Probe to find faults. You can tone high and low, and both high and low, each leg individually, or by pair. I think this is indispensable tool when working on LAN systems. In terms of pricing it is absolutely affordable and pays for it...
Rechargeable Optical Fiber Power Meter - Cable Tester for Maintenance, Measures Power from -70 to 10 dBm Shipping, arrives in 3+ days Case Compatible with Klein Tools VDV501-851 VDV500-123 VDV226-110 VDV427-300. Storage Carrying Travel Holder for Cable Tester for Scout Pro 3/ Tracer Probe...