magnetic sensor (lower part of the rear camera) of Phone get close TV, PC, Refrigerator, Hair dryer.... It can be measured using the smartphone's built-in magnetic field sensor. This sensor allows you to detect objects generating magnetic & electromagnetic field like: electronic device : TV, electronic oven, refrigerator, cellphone .... electromagnetic wave is? The health organization caused a global stir by classifying radiofrequency electromagnetic fields as probably carcinogenic to humans. It has classified radio frequency electromagnetic radiation as Group 2B - possibly carcinogenic. Group 2B : This group contains possible carcinogens that have weaker evidence, at the same level as coffee and automobile exhaust. electromagnetic waves might be bad for health. and it can also cause many problems to your brain. Some doctors and scientists recommend to avoid electromagnetic waves. Peoples are required to avoid long-term exposure to radiation.They need to keep electromagnetic devices away from their body. * electromagnetic wave benchmark Less than 10 v/m : safety 20 ~ 50 : warning 50 ~ 200 : danger It is value. wifi modem : 3.17~4.67 v/m electric shaver :7.4~22.5 Hair dryer :92.9~101.6 television : 50.0~182 Refrigerator :57 Floor lamp : 48
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