I use Fluke Linkrunner at work. It cost around $1200 so I wasn't expecting too much from this device. I was surprised it's not bad. I do a lot of home automation and it's great to have this tool on hand. except when it fell down my stairs after only a few days of use. It wouldn't turn on, so I opened it up. Two large caps broke off the board, taking part of the route with them. I fixed the face and reattached the caps. Now it turns on and the menus work, but none of the tests work and return with an error in each. So if you get one, wrap the edges of the case in case it falls. The fluke at work has not only been dropped by me many times and never had a problem but hey I can buy 10 of these for one of these.