How To Find The Specific Absorption Rate (SAR) Of A Cell Phone

In India, mobile users are being asked to check the Specific Absorption Rate (SAR) value of the mobile handset before purchasing it. (All mobile devices emit radio frequency (RF) radiation when transmitting wireless signals. A mobile device’s SAR rating is used to estimate the amount of RF radiation absorbed by a user’s head and body when using the device.)

The Indian request comes on the heels of new mobile radiation standards that went into effect at the beginning of September. The standards issued by the Department of Telecommunications (DoT) are designed to cut down on radiation levels in the interest of public health. To reduce their RF energy absorption while using handsets, consumers will only be allowed to use designs that have a SAR value. According to the new rules, the SAR value has been reduced to 1.6 watts per kilogram averaged over 1 gram—down from the previous 2.0 watts per kilogram averaged over 10 grams—of body tissue.

Here in the US, the Federal Communication Commission (FCC) has likewise set the SAR limit at 1.6. This means that for a phone to receive FCC certification and be sold in the U.S., its maximum SAR level must not exceed this level.

FCC Seal

How can you find the SAR of your device?

The FCC maintains a SAR database. To determine the SAR rating of your device you’ll need its FCC ID number. It’s usually on the case of the cell phone or specified in the “About” data on the phone itself, although you might have to remove its battery pack to find the number.

Once you have the number, you can go to the FCC web site and follow the instructions.

FCC ID Search

Most manufacturers also include the information in their product manuals, as well as on their websites. Other sites, including CNET, also provide access to the SAR levels of cell phones.

Is my cell phone safe?

As Dr. Sanjay Gupta highlighted on CNN last week, just because your phone is below the regulatory threshold, doesn’t mean it is safe.  And recently, the Government Accountability Office told the FCC that US guidelines need to be updated because they may not reflect the latest research.  In May 2011, the World Health Organization/International Agency for Research on Cancer classified cell phone radiation as possibly carcinogenic, and recommended that “consumers should consider ways of reducing their exposure.”

 How Does a Pong Case Affect SAR?

A Pong case reduces SAR by redirecting and redistributing the electromagnetic radiation from your cell phone away from your head and body. Consequently, the case also optimizes your signal strength and can conserve battery life.

Using a custom-engineered Coupled Antenna System (CAS), Pong is the only technology proven in FCC-certified laboratories to reduce your exposure to mobile device radiation by up to 95% below the FCC and international safety limits without compromising your device’s ability to communicate.

 With Pong, you can have the satisfaction of knowing that you are reducing your exposure to unnecessary radiation, while optimizing your signal strength.

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9 thoughts on “How To Find The Specific Absorption Rate (SAR) Of A Cell Phone”

    1. Every phone has a different SAR level.
      But the 1.6W/kg is a US safety limit. Pakistan probably has a different level, based on the International (ICNIRP) limit of 2.0W/kg (average over 10g of tissue)

  1. Please sir, how do i calculate the the specific absorption rate with a radiation meter?

    1. The FCC maintains a SAR database. To determine the SAR rating of your device you’ll need its FCC ID number. It’s usually on the case of the cell phone or specified in the “About” data on the phone itself, although you might have to remove its battery pack to find the number. Once you have the number, you can go to the FCC web site and follow the instructions. http://transition.fcc.gov/oet/ea/fccid/

      Most manufacturers also include the information in their product manuals, as well as on their websites. Other sites, including CNET, also provide access to the SAR levels of cell phones.

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