Remote Technologies IR-PRO T3 - Manual (Page 22)

Operation
15
TIME OUT
This button displays a window that allows you to adjust the
amount of time the unit stays awake after the last button press.
The time is variable from 1 second to 120 seconds (the default is 10
seconds). Press the arrows to the left or right of the Time Out
setting to adjust the time. Press the
OK
button when finished.
This setting can have a significant effect on the run-time of the T3
between battery charges. During Sleep mode, the T3 uses virtually
no battery power.