<p><strong><font face="tahoma,arial,helvetica,sans-serif" size="3">FRx Battery for use on US commercial airlines. This Aviation Battery meets the specifications of the four-Year Battery and the FAA TSO C-142 regulation for use on commercial aircraft.  The device complies with the requirements of the Medical Device Directive, 93/42/EEC, and carries the CE-marking accordingly.   Labeled with an install-by date of five years from date of manufacture. Standby Life: Four years typical when battery is installed by the install-by date. (Will power the AED in standby state within the specified standby temperature range, assuming one battery insertion test and no uses.)   Available for sale in US only.</font></strong></p>