Display layout 1 Number of the probe port that is the source of this measurement 2 Abbreviation of measurement parameter 3 Latest measured value 4 Unit of measurement 5 Information icon. Touching the left button (below the icon) opens the device information page. 6 Service port connection status 7 PoE power supply status 8 Host system connection status 9 Battery level Display when errors are active 1 Error icon. When the error icon is shown, touching the left button opens the error page. 2 PoE power supply status. In this example PoE is not connected. 3 Host system connection status. In this example the Ethernet connection is not available as PoE is not connected. 4 The color of the icon row is inverted when there are active errors.