There is no need to worry about radiation hazards when using mobile phone jammers. Like mobile phones, the signals emitted by mobile phone jammers do have certain electromagnetic radiation. The working principle of the jammer is similar to that of the mobile phone. For example, the chip used by the jammer is the same as that of the mobile phone, and it also emits electromagnetic signals. Therefore, like the mobile phone, it also generates certain electromagnetic radiation.

Will electromagnetic radiation of all intensities endanger human health? The degree of harm to human body caused by mobile phone shield is not uniform. It is related to the length of time the machine is turned on and personal physical fitness. In fact, there are national standards for the safety value of electromagnetic radiation intensity. The national standards mentioned here are the public exposure derived limits in the Electromagnetic Environment Control Limits (GB8702-2014) updated by the State Environmental Protection Administration in 2014. This national standard stipulates the maximum limit of the safety value of electromagnetic radiation exposure, and the average value of electromagnetic radiation exposure field intensity for the public should not be greater than 0.4W/㎡.

Mobile phone jammers produced by enterprises with formal production licenses have been strictly tested by the environmental detection department, and the radiation intensity is below the maximum limit specified in the Electromagnetic Environment Control Limits (GB8702-2014), so it can be understood that the radiation value of mobile phone jammers produced is safe for human body.
The transmission power of mobile phone jammers suitable for small space such as classrooms, examination halls and meeting rooms is relatively small, and there are strict specifications for the installation position and installation height. For example, the linear distance from mobile phone jammers to the human body is usually more than 2 meters above the blackboard in the classroom and on the wall of the meeting room, which has reduced the harm of electromagnetic radiation of mobile phone jammers to the human body to below the safety value.