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

Overall a good product for its price. Helpful for tracking down a cable in a mess of cables.

I work in the telecommunications industry and I have used all sorts or line identification tools and this mapper is solid and at a great price! It just works!

best brand for toners, all other brands i’ve tried have been faulty.

This mapper saves a lot of time when troubleshooting or doing installations. I lost one of the remotes tho, where can I purchase one? Need the red remote

simple to identify which cables in attic go to which room.

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!!

Quality tool that allowed me to identify coax cabling in a new house. Installers did not label coax so I was able to id which cables went to which outlets. Found a fault in one of the cables, it was not terminated properly. Worth the price even for a one time (hopefully) use.

This is one of the easiest tools to use and saves time and fustration.

Great toner