In order to manage data received from your sensor device efficiently, the FilesThruTheAir™ Cloud divides data up into what we call ‘sessions’. Your sensor device will begin a session when it first begins logging. If you make any changes to the device such as a sample rate or alarm level change, the FilesThruTheAir™ Cloud closes and saves the current session and a new session is started. This is also the case when there is a time change due to Daylight Savings being applied automatically in Spring and Autumn. A complete list of all sessions is shown in the Other Sessions tab on the View Data page. All sessions are marked with a date and time to show the period that they cover, together with a device audit trail showing the changes which caused a new session to start. In a Professional account you can also export this device audit trail as a pdf.