All Acorn products have been tested to CE standards using independent and accredited test houses and meet applicable and statutory limits for radio frequency (RF) exposure.

What is SAR?

Specific Absorption Rate (SAR) refers to the rate at which the body absorbs RF energy. The SAR limit is 1.6 watts per kilogram in countries that set the limit averaged over 1 gram of tissue and 2.0 watts per kilogram in countries that set the limit averaged over 10 grams of tissue. During testing, the radios are set to their highest transmission levels and placed in positions that simulate use against the head, with no separation, and near the body, with 5mm separation. (values correct at time of writing)

To reduce exposure to RF energy, use a hands-free option, such as the built-in speakerphone, the supplied headphones, or other similar accessories. Carry phones/tablets at least 5mm away from your body to ensure exposure levels remain at or below the as-tested levels. Cases with metal parts may change the RF performance of the device, including its compliance with RF exposure guidelines, in a manner that has not been tested or certified.

Although Acorn devices have been tested to determine SAR in each band of operation, not all bands are available in all areas. Bands are dependent on your service provider’s wireless and roaming networks.


More Information on SAR


Tips on reducing SAR

RF is an essential feature of some Acorn products to allow external communication and data transfer, however there are some things you can do to help reduce the SAR of youre device.

  • Whenever possible, use the speaker-phone mode or a wired headset to increase the distance of the phone from your body.
  • Avoid using your cell phone when the signal is weak or when moving at high speed, such as in a car or train, as this automatically increases power to a maximum as the phone repeatedly attempts to connect to a new cell antenna.
  • Avoid carrying your phone on your body. Do not keep it near your body at night such as under the pillow or on a bedside table.
  • Young children should only use mobile phones for a short duration and rarely.