To function: There is not much to be expected, then you will not be disappointed. The device feeds the 8 signal lines and the ground contact (normally starting CAT5 present, but not with cheap cables) in the left upper networking with enough power for an LED and reports the in the upper row of LEDs. The active pin changes while in "Auto" mode in half-second intervals, or changes one after another by pressing the blue button in the "Manual" mode.
Does the cable under test back to the network connection on top right, so each power-receiving LED lights up. One important note: The printed label 12345678G is unfortunately postponed, so that already speculate or must count, which pin is actually meant (see second photo). With patch cables are expected logically that each top and bottom LED lights up in sync, the crossover cables have to know yourself, which pins are connected to each other like (making Wikipedia: [...]).
If you want to check a house wiring, you will be at one end of the cable (or patch panel) to connect the main unit in the top left and mode switch to "Auto", and then go into the other room with the Terminator and connect it there (see third photo) , In the case where light up in sequence by the LEDs. Unconnected pins remain dark, short circuits cause more than one simultaneously illuminating lamp. On the main unit lights up each case only one LED, the function here can not be read.
That's about it. Of course, this feature one could imagine less processed shaky and for a higher price also. But if only a blue moon times must check network cable in the hand or in the wall, which is sufficiently well served with this "China scrap for 10-15 EUR".
