Spectra Precision ProMark 120/220 Handheld Platform - Manual (Page 14)

English
8
To wake up the receiver, hold the same button pressed until
the screen wakes up. This will instantly restore the use
context in which the receiver was before entering the
Suspend mode.
Turning the
Receiver Off
After you have finished your field work, turn off your receiver
by holding the Power button [8] pressed until the message
“Saving Parameters” is displayed on the screen. The power
shutdown will be effective after about 10 seconds.