Southwire M500CX4 Coax Continuity Tester/Mapper, Durable Design, Auto Power-Off, Double-Molded Housing, Easy-to-Understand LED Display, Includes 4 Color-Coded ID Remotes

If you had an electrician like we had, then you will love having this to chase down your cable connections. Very easy to use and works great. Also helps you find defective wire connections. If you have digital over the air TV and are having issues with the signal, it could just be because you have bad end connectors on your cable wiring. If your wire is poorly grounded or you have poor connection, you will not get a strong signal. Wish I had this years ago after our electrician left our new house with no labels on any of the cable wires...2 wires for every room in the house!!

Button batteries were dead. I had to order new batteries

Good product. Value for money. Easy to use

Works great and you cant beat the Price !

The batteries I received with this unit did not work. I need this tool for my job, so I was forced to go out and buy some. The problem is that no store sells LR44 batteries. So you have to buy the equivalent... had to purchase 3 different sets of batteries to find one that actually makes the tool light up. Was a very frustrating experience that could have been easily avoided had the company sent ne batteries that actually work

Work Perfect!

Nodes quit working after a couple of jobs cheap quality

This device stopped working the first time I used it. I would never buy another southwire product. I contacted the company several times for assistance but have never received a response.

Excellent tool. Easy to use.