Cell phone signal jammers are produced to reasonably avoid and interfere with mobile phone-related signals, such as GPS, WIFI, 2G, 3G, 4G, or 5G in the future. It is mainly used in school examination rooms, prisons, detention centers, etc., to ensure the fairness and justice of examinations, high school entrance examinations, college entrance examinations, or usual mock examinations. So how should you choose a signal jammer? From the manufacturer's point of view, if you choose it improperly, it will easily cause the product to be returned or exchanged, or the installation will have no effect.

Shop around to select products and conduct extensive research to learn more about:

1. Conduct research on product quality, technical means, and brand;

2. Through Internet search, initially understand and communicate with technical personnel, and listen to technical explanations;

3. Prison demonstration to see the effect:

4. Select the best ones and go to the site to test and demonstrate the shielding effect;

Examine the actual effects of the case:

1. After demonstrating the product, you can examine the application, operating status and actual effect of the product on other similar projects;

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

3. Simple and quick method to judge equipment:

Equipment that can be considered

1. The areas that should be shielded are not strictly shielded, which is costly and laborious but ineffective;

2. The areas that should not be blocked have serious interference, have been complained about, and cannot be used normally;

3. There is a gap between overly biased detection and pseudo base station technology, ideals and reality, and there are currently no truly successful cases to be found in China;

Equipment that should not be used

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

2. An additional protective box is required, which is small in size and light in weight;

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

4. There are many places in the equipment where air circulates inside and outside, and the interior is prone to corrosion;

The topsignaljammer brand wireless signal jammer system provides mobile phone jammers | GPS signal jammers | wireless WIFI mobile phone signal shielding | one-stop signal shielding solutions for prisons, detention centers, schools, examination rooms and other important places.