Review on Southwire M500CX4 Coax Continuity Tester/Mapper: Durable Design, Auto Power-Off, LED Display & 4 Color-Coded Remotes by John Lewis

This is the best cartographer I've ever had. I tried them all and found that I was buying more cartographers each year. The most popular was the plain Jonard for $20*. The problem with this junk is that the battery doesn't last a year and you just end up buying a new one because it wasn't made replaceable. This mapper is the answer to that piece of shit. It feels the same with an almost velvety touch and a soft button, unlike the Jonard which needs to be pressed very hard and the button hurts the thumb even after repeated use. Best of all, you can change this thing's batteries over and over again.