SAR and induced current measurements on wired hands-free mobile telephones

The aim of this work was to establish the level of SAR (specific absorption rate) within the head, associated with the use of hands free kits (HFKs) with GSM mobile telephones and to identify the principal factors determining the observed levels of SAR in order to better understand the observed levels. The work was funded as part of the UK government's mobile telecommunications and health research programme in response to public concerns on the use of HFKs.