Fisher F-PULSE Video Manual Power On and Power Off

Quick-press the button, You will hear the start jingle followed by a ready beep.
Wait for the ready-beep before presenting the F-Pulse to metal. If metal is near the pinpointer before the ready-beep, the pinpointer will overload or operate at a reduced sensitivity. If this happens power the F-Pulse down and then power the F-Pule back on again.
Press and hold the button for ½ second. Release the button when you hear the power down jingle.
The F-PULSE from Fisher Research Labs