Its multifunction cable tester can be used with LAN cables, RJ45, and RJ12 connectors. Its range of length is as long as 500 meters and it can automatically perform diagnostic tests as wires are put into connector pins. However, its rubber dust protectors aren't secure and can easily be removed. There are no straps or tapes for securing it. It is also not dispensable, so you have to charge it every time you make use of it.
https://www.noyafa.net/multifunction-cable-tester/