DataShark Network Cable Tester - Cable Mapper, Check Continuity - Test Patch Cords or Installed Cable Runs

Crimped a bunch of Ethernet cables and had a bad one. Easy to figure out. Plug and play.

Cannot use it without the batteries it said it includes.

Horrible product do not buy

Clever handy tool.

I love this tool. If you make your own cables and do your own wiring, this is an absolutely essential tool. Its not fancy. It simply does what you need it to do, which is validate the wiring order. If you are a professional, you probably want a better, more durable tool with more features, but if you are a home user, this is all you need, and the price is right.

Product is accurate. I used it to run my whole house Cat 6 cable.

Our teams really like them and found them handy to have in their kits.

As advertised with a great price

Bought one of these at Home Depot. It was DOA -- didnt function at all (aside from the power light).

Resolved network problem by identifying bad cable