Hi Anthony,
You can add a field to your form that captures the Device ID of the device every time a record is saved. This data can then be synced to your database table along with the other field information stored with your record. This would allow you to see the device that sent the data in the database table as opposed to the log file. This field could also be set to read only, and not visible so that the user does not see it.
To do this, add a field to your form, and change its FieldType to 'Variable'. When the 'Variable Options' tab appears change the Variable type to Device ID.
Let us know if this helps.