Portable LAN interface wire measuring instrument

The invention relates to a portable LAN interface wire measuring instrument, and belongs to the field of LAN wire measuring instruments. The instrument comprises a main tester and au auxiliary tester, a main RJ45 slot is formed at one end of the main tester, an auxiliary RJ45 slot is formed at one end of the auxiliary tester, a sucker disk is fixed at one side of the back of the main tester, the internal of the back of the main tester under the sucker disk is hinged to a magnet via a hinge shaft, and the main tester is provided with a movable cover plate at the position of the magnet. The portable LAN interface wire measuring instrument can improve the working efficiency safely, conveniently and effectively, and ensures that onsite work is safe and effective.