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

This tester works great for the money. I tried to test my Cat 5e runs with a laptop and my router, but I had enough issues with the connectors that I needed one of these to figure out what I had done wrong. I had a couple of connectors that I cut the wires too short to get a connection and a couple where I did not get the wires inserted in the right order. You really dont need more than this to verify data runs. Save the money versus the more expensive testers and use a multimeter to test your Coax runs. You can test Coax by checking continuity (or resistance) for a open circuit between the center wire and the outer wire on one end. Then short the other end (an alligator clip works) and test for continuity. You dont need any special adaptors to test coax with a multimeter.

The case could be better. It does not hold the test unit and small test link jumpers. The unit runs through a test light sequence, each corresponding to a wire checked. Once you know the sequence you can see if a light is not energized, equating to an issue in the cable. For a basic and inexpensive tool it does well.

This is a great product for a casual user. A professional will not be happy with it.

Very helpful in the job and have a great value

worked just fine, found error I had made quickly. Worked on a cable + - 300 long. 4 stars because Im sure it had a fault I just didnt detect.

Just what I needed to test DYI built cable.

Invaluable tool and at a great price. An absolute necessity if you make your own cables and for testing same elsewhere.

Clever handy tool.

Used item to locate network problem. Problem resolved. Thanks.

I used it to test my cable connection. The tester shows that everything is fine, whilst in real life the connection is not strong enough to pass through data.