# How to understand SAR value?

Understanding the Specific Absorption Rate (SAR) value of a mobile device is an important part of considering the safety and use of that device. SAR is a measure of the rate of radio energy that is absorbed by the body due to the device’s emitted radio frequency (RF) energy. This simple guide will explain how to understand SAR value.

## Introduction

The SAR value or Specific Absorption Rate is a measure of the rate at which energy is absorbed by the human body when exposed to a radio frequency. It is a measure of the amount of radio frequency (RF) energy that is absorbed by a person’s body when using a mobile phone, and it is used to ensure that mobile phones are designed to be safe for human use. Understanding SAR values is important to ensure that the mobile phones you use are safe.

## What is SAR?

The SAR value is the unit of measure for the amount of radio frequency (RF) energy that is absorbed by the body when using a mobile phone. It is a measure of the rate at which energy is absorbed by the human body when exposed to a radio frequency, and it is expressed in watts per kilogram (W/kg). SAR values are determined by laboratory tests and are set by regulatory agencies.

## What is a safe SAR value?

The SAR value is a measure of the rate at which energy is absorbed by the human body when exposed to a radio frequency. The SAR value is expressed in watts per kilogram (W/kg). Most regulatory bodies have set a maximum SAR value for mobile phones. In the United States, the Federal Communications Commission (FCC) has set the maximum SAR value for mobile phones at 1.6 W/kg. The SAR values of mobile phones sold in the United States must not exceed this value.

### How to check the SAR value of a mobile phone?

The SAR value of a mobile phone can be found on the phone’s label, or in the user manual. The SAR value is usually listed as either a “head SAR” or a “body SAR”. The “head SAR” is the SAR value for when the phone is held against the head, and the “body SAR” is the SAR value for when the phone is held away from the body. The lower the SAR value, the safer the phone is.

### What are the potential health effects of high SAR values?

Exposure to high SAR values can have potential health effects, including increased risk of certain types of cancer, as well as neurological and reproductive effects. The World Health Organization (WHO) has classified cell phone radiation as a “possible human carcinogen”, and there is some evidence to suggest that exposure to high SAR values can increase the risk of cancer. It is important to note, however, that more research is needed to understand the potential health effects of high SAR values.

## Conclusion

Understanding SAR values is important to ensure that the mobile phones you use are safe. It is important to check the SAR value of a mobile phone before using it, as exposure to high SAR values can have potential health effects. It is also important to note that more research is needed to understand the potential health effects of high SAR values. By understanding SAR values, you can make an informed decision about the safety of the mobile phones you use.

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