Currently, criminals are using GPS more frequently for fraudulent activities. The frequency of cellular telephones can lead to intruders trying to locate the location of any group of people. In order to solve the problem of the use of communication equipment, the mobile phone jammer of the car is designed. There are tons of cell phone jammers available to monitor or avoid malfunctions. So all your actions will be safer. Using a GPS cell phone signal jammer can more easily block surveillance operations and ensure the safety of the vehicle.

When you suspect that someone is using GPS to track your location, imagine that with the help of a GPS device, someone can hear every word of your conversation, which can be very detrimental to you. Furthermore, the surveillance equipment is so small that it is nearly impossible to find its location. However, if you install a GPS jammer in your car, it will not only save you time to find it, but also keep you safe.

Nowadays, the appearance of the shielding device has solved many hidden dangers of disrupting the order for the examination room, so that the candidates can take the examination in a fair environment. The principle of this test signal jammer is actually to isolate the electronic signal, so that the communication signal of the mobile phone fails, which can prevent the phenomenon of cheating by using the mobile phone.

Generally speaking, the effective range is within a radius of 0 to 30 meters. Generally, a low-power test signal jammer is enough to cover an entire classroom, which meets the needs of the test room for shielding signals, and is especially suitable for schools to purchase signals for the test room. shield.

The trouble of purchasing a signal jammer for exams is something that many customers have. Can test signal jammers block all communication signals? Speaking of which, many people are unfamiliar with the test signal jammer. In fact, it has been widely used in the examination room of the college entrance examination. In last year's college entrance examination, many test rooms installed this kind of equipment. Many good responses have been proven to have a good effect on eliminating cheating by electronic signals. Since the beginning of this year, it has been vigorously promoted, so that more test rooms can also install shielding devices.