1、Stable performance, it has strong anti‑interference ability, and has a variety of applicable types of cables. It is an indispensable testing tool for telecommunication engineers, wiring engineers, and network maintenance personnel. 2、Tracking function, it can track the line from RJ11, RJ45 interface, other metal conductors can be tracked through the adapter, the sensitivity is adjustable, the signal is strong and the distance is long. 3、Non‑contact type, it can use non‑contact method when performing AC voltage detection, can detect AC voltage above 48V, and does not need to strip the sheath, which is convenient and quick. 4、It can be directly searched with any type of weak current equipment such as Ethernet switches, routers, etc. It can fully detect the order of the network cables, and is equipped with low‑voltage prompting and lighting functions. 5、Small in size, it is lightweight and portable, can be easily hand‑held to test in various situations, to help you detect the cables you need，can be used as a good helper for you.