The doseBadge stores the average noise level every minute. On the Reader unit you can see a graph of the noise over time and when the measurements are transferred to the computer you can carry out a more detailed analysis on this data.
The most useful aspect of Time History is the ability to see at a glance that the measurement looks valid (e.g. the doseBadge has not been taken off and left lying on a noisy machine) and the ability to identify noisy times of the working shift.
The doseBadge also stores the Peak dB(C) and the battery level every minute.