Switching On; Auto Power Off - HT EARTH 2P Manuel D'utilisation

4.2.1. Switching on

When switching on the instrument a brief tone is audible along
with display of all segments for about one second.
Subsequently the last firmware version as well as the last
selected measuring mode are displayed before switching off.

4.2.2. Auto power off

The instrument automatically turns off 3 minutes after the last key pressing. To resume
operation turn on the instrument pressing the on/off key.
EN - 6
GEO416 - GEO416GS