This article provides more information on the side panel controls for the 1515L monitor

The Elo 1515L monitor is equipped with side panel controls to allow adjustments to the monitor.

All adjustments made to the controls are automatically memorized. This feature saves you from having to reset the choices every time the touchmonitor is unplugged or powered off and on. If there is a power failure, the touchmonitor settings will not default to the factory specifications. See below for details.