How to choose cell phone jammer

　　Cell phone jammers gps are produced to reasonably avoid and interfere with mobile phone related signals, such as GPS, WIFI, 2G, 3G, 4G, or the future 5G. It is mainly used in school examination rooms, prisons, detention centers, etc., to ensure fairness and impartiality of examinations, or the usual written tests.

　　Shop around to select products, conduct extensive research and learn more: conduct research on product quality, technical means, and brands; through online search, preliminary understanding and communication with technical personnel, listening to technical explanations

　　On-site demonstration to see the effect: choose several manufacturers, go to the scene to test and demonstrate the shielding effect;

　　Investigate the actual effect of the cell phone jammer case: It is best to bring the mobile phone into the shielding area after approval during the inspection to verify the shielding effect.

　　Simple and quick way to judge the device of cell phone jammer:

　　1. The area that should be shielded is not strictly shielded, and it costs money and effort to be ineffective;

　　2. The area that should not be shielded is seriously disturbed, complained and cannot be used normally;

　　3. There is a gap between over-biased detection and pseudo base station technology, ideal and reality

　　Unsuitable cell phone jammer devices

　　1. Small size, the host and power supply are separated, and a circuit board is used inside;

　　2. It needs to be equipped with a protective box, which is small in size and light in weight;

　　3. The natural heat dissipation area is small or a fan is used to help heat dissipation;

　　4. There are many air circulation inside and outside the equipment, and the inside is easy to corrode