In some applications it is necessary for a sensing device to be visited periodically and physically checked by the user. When enabled, the Audit Check function records these checks, which are displayed on the graph, and in tabular data. Change your Audit Check settings in the Change Device Settings page.
To record an Audit Check, the user simply presses and holds the device button for three seconds. On the LCD, both MIN and MAX flash together to acknowledge that the Audit Check has been recorded.