Device 3 urn:oma:lwm2m:oma:3:1.2 1.1 1.2 Single Mandatory Manufacturer R Single Optional String Model Number R Single Optional String Serial Number R Single Optional String Firmware Version R Single Optional String Reboot E Single Mandatory Factory Reset E Single Optional Available Power Sources R Multiple Optional Integer 0..7 Power Source Voltage R Multiple Optional Integer Power Source Current R Multiple Optional Integer Battery Level R Single Optional Integer 0..100 /100 Memory Free R Single Optional Integer Error Code R Multiple Mandatory Integer 0..32 Reset Error Code E Single Optional Current Time RW Single Optional Time UTC Offset RW Single Optional String Timezone RW Single Optional String Supported Binding and Modes R Single Mandatory String Device Type R Single Optional String Hardware Version R Single Optional String Software Version R Single Optional String Battery Status R Single Optional Integer 0..6 Memory Total R Single Optional Integer ExtDevInfo R Multiple Optional Objlnk