Whether any electromagnetic wave emitting device is harmful to the human body depends on the specific absorption rate of the electromagnetic wave by the human body. The highest radio frequency radiation safety standard SAR recognized by the International Commission on Non-Ionizing Radiation Protection is 2.0, and my country's standard is 1.5. At present, the transmitting power of the transmitting tower of the wireless communication station is generally 40W~50W, and the specific absorption rate of the electromagnetic wave by the human body is below 1.0 when the distance from the transmitting tower is 20~30 meters. The Cell Phone Blocker Law For Buisnesses equipment used in the examination room is a micro-power device, and its transmit power is generally less than 3W, which is used in the corridor outside the examination room. In this case, the specific absorption rate of electromagnetic waves by the human body is the smallest. Therefore, the cell phone jammer equipment used in the examination room will not cause harm to human health.
Many students with weak self-control can play games, send text messages, or even call the teacher's classroom discipline when they find the course content boring. In the dormitory, other students want to take a break, and the phone screen is on to talk to them. , the roommate can't sleep. The school teacher told reporters. Buy a smartphone that supports multiple frequencies. High-tech Cell Phone Blocker Law For Buisnesses can block multiple frequencies, while other jammers can only block one frequency. If your phone runs on multiple frequencies, You can only use other frequencies to protect yourself from interference. Different states and cities have different laws on the use of cell phone jammers. Some areas have strict laws, while others only allow access to certain areas. If you If you suspect someone is using a cell phone jammer illegally, contact the police to see if a cell phone jammer can be obtained from the shop owner.
