▎ 摘　　要

NOVELTY - The utility model claims a graphene water purity testing device, comprising a shell, a centre cylinder, electrode, membrane, filling, a current detector, a wireless signal transmitter, the shell is a cylindrical shell. and the shell side surface is uniformly opened with multiple strip-shaped through hole; the electrode is fixedly connected upper and lower two end inside the shell, the central cylinder is fixedly connected in the shell, the diaphragm side in the shell, the filler is cotton fibre, and flocculent fibre surface is absorbed with the graphene material. the current detector is installed in the central cylinder, and the anode and cathode of the current detector is respectively connected with the upper lower two electrode connection, the wireless signal transmitter is installed in the central cylinder, and the wireless signal transmitter through signal wire is connected with the current detector, the top of said shell connected with a fibre rope, on the fibre rope end is fixedly connected with the buoy. The utility model has simple structure, convenient use and good use effect and so on.