3 steps to teach you how to choose a mobile phone signal blocker from dojammer's blog

Cell phone signal blockers can interfere with and block major mobile phone signals in China, such as: 2G, 3G, 4G, 5G, GPS, WIFI, 2.5G. Now the widely used 5G signal can also be blocked normally. It can be used in many institutions such as: school examination rooms, prisons, guards, banks, conference rooms, military and other places. In order to ensure the fairness of the examination, many examination rooms have also installed such equipment, and some simulation examination rooms have also purchased this equipment as a necessary equipment sequence. So the question is, there are still many people who don’t know how to choose the right cell phone signal blocker for themselves.

1. Choose a cell phone signal blocker manufacturer and get first-hand sources

① Compare prices and choose a few reliable manufacturers to investigate the quality, technical means and brand of the products;

② Check the manufacturer’s technical personnel and technical use plans on the Internet to get a preliminary understanding and communicate, and listen to technical explanations;

2. On-site test of actual effects

Choose the best products from these three companies to enter the on-site car market, and then compare the test results to select the best equipment;

3. Investigate the actual product case effects

① After testing the product, you can go to several companies that are using this product for inspection;

② During the inspection, it is best to bring the mobile phone into the shielding area after approval to verify the shielding effect.