|Definition||:||Specific Absorption Rate|
|Category||:||Technology Specifications & Standards|
What does SAR mean?
Specific Absorption Rate (SAR) is defined as the amount of absorbed non-ionizing radiation power or rate of absorbed energy by a unit mass of biological tissue. The unit of SAR is watts per kilogram (W/kg).
The SAR limit in the United States for mobile phones is level at or below 1.6 W/kg, averaged over 1 gram of tissue. And in Europe, the SAR limit is 2.0 W/kg averaged over 10 grams of tissue. SAR values are heavily dependent on the size of the averaging volume.
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