The government of India has launched a website tarangsanchar.gov.in to help you check the radiation levels in your area. Just log in to the website, switch on your device location or enter your address and check out the number of cell-phone towers in the area.

Wi-Fi uses radio waves to transmit information between your device and a router via frequencies. Two radio-wave frequencies can be used, depending on the amount of data being sent: 2.4 gigahertz and 5 gigahertz. The two Wi-Fi frequencies are split into multiple channels so as to prevent high traffic and interference.

— Now dial *#07# in your phone. This will show the you the SAR measurement of your device as specified by the manufacturer. At the same time, you can limit the exposure phone radiation by using earphones with mobile when you are talking and limiting the usage of mobile devices.

In the EU, a SAR value of 2 W/kg has been allowed, while the permissible SAR value in the US is 1.6 W/kg. 1….Choisissez la langue de votre document :

Specific Absorption Rate (SAR) is a measure of the amount of RF power deposited in the human head or body whenever a mobile phone or other wireless radio device transmits. It is the maximum SAR value (in units of Watts/kilogram) that is measured during SAR compliance testing.

SAR Value is a measure of the maximum energy absorbed by a unit of mass of exposed tissue of a person using a mobile phone, over a given time or more simply the power absorbed per unit mass. This gives the SAR (specific absorption rate) value.

Do SAR values change when a mobile’s OS is updated? Original OS updates from the manufacturer are designed to improve the software functioning in the device and do not affect any radio settings including SAR values.