The signal is better, the function is higher Cell Phone Jammer Uk Law can pass through the wall. However, not every model can achieve this effect. At present, the quality of the signal jammer in the examination room on the market still has a certain difference. We produce signal jammers. People who can meet different needs. Whether it is a mobile phone signal jammer with an external antenna or a built-in antenna, there is everything. As a professional manufacturer of signal jammers, they strive to be technologically advanced in this regard. In addition, they are able to adapt to market changes quickly and ensure public order in the examination room to ensure fairness and fairness. cell phone jammer
In general, the best place for installation is one or two meters above the ground, so that it is easier to cover more areas. After installing to the corresponding position, make sure that the installation sequence is correct, and then turn on the Power . Make sure the machine is running normally, and then you can test how the machine works. Decide how many Cell Phone Jammer Uk Law need to be installed according to the test situation. If you think the installation of an external antenna is troublesome, then it is recommended to use the built-in antenna. However, many people think that the signal shielding effect of the built-in antenna is not so Powerful. In fact, that was because the right product was not selected. Our built-in antenna shielding signal device is as good as the external one. So choosing a reliable manufacturer is still very important.