1、Withstand Voltage 60V: The POE tester can be used directly on the switch, and the line can be traced directly on the switch within 60V, which is more convenient and simple. 2、Testing Easily: Proof of the cable sequence, when the cable crystal plug is done, the cable finder can be used to test whether the cable is connected or disconnected. 3、Precise Line Hunting: It can accurately find the pair of line cables that need to be searched among many lines. 4、Finding The Line In One Step: Line finder supports a variety of lines can find telephone lines, network cables, wires, and various metal cables. 5、Anti Interference And No Noise: The cable tester is effective in anti interference, with a headphone connector design, you can wear headphones for tracking in noise or office environments.