Fairness and justice are the basic principles of society, and life has to face many examinations, from elementary school to junior high school entrance examination, to college entrance examination and civil servant recruitment examination. In order to prevent candidates from cheating, various large and medium-sized examinations use high-power Cell Phone Jammer Using Ne555 and other technical means in the laboratory to meet the needs of mobile phones unable to access the Internet, and the signal needs to be shielded. Confidentiality of candidates is a good preventive measure. Governments and companies are also looking for mobile phone jamming devices. Meetings between the government and enterprises are very frequent, but in order for participants to focus on the meeting and learn the spirit of the meeting, it is necessary to prevent the use of mobile phones. When a reader is in a meeting, turn on the mobile phone signal jammer to block the mobile phone signal. Leaders are willing to speak and listen carefully. cell phone jammer
At present, even all classrooms of many schools have installed this kind of mobile phone signal jammer. This Cell Phone Jammer Using Ne555 is small in size and takes up little space. In addition, since the shell is made of metal, it is well protected, with the focus on preventing moisture. The signal jamming device in the examination room shielded the mobile phone signal. Different brands have different numbers of blocking signals. The mobile phone signal jammer in the test room is designed to shield the test signal, and the shielding is more accurate. It will not shield the signals of other electronic devices, reducing the possibility of false interference. In addition, the use of mobile phone signal jammers in the examination room will not endanger the lives of teachers and students in the examination room. Since it does not contain radiation, there is no need to worry. Unlike prison jammers, cell phone jammers in doctors’ offices have unique characteristics. First of all, the working time is usually 3 hours, which reduces the heat dissipation requirements because it does not have to work 24 hours a day like a prison cell phone signal jammer. The second is that the budget of the education sector is generally low, and the product cost-effectiveness requirements are high.
