Sper Scientific 850013 Advanced Datalogging Sound Meter - Manual (Page 9)

9
KEYPAD
1. POWER
Press to turn the unit on. To turn the unit off, press and
hold POWER until “P-OFF” appears on the LCD.
Auto Power Off - To save battery life, the unit defaults to
the auto power off mode when turned on. The unit will
turn off after 30 minutes of inactivity. The auto power
off function is disabled when connected to a PC or when
the recording function is in process.