Keep this instrument far away from any metallic object, press and hold POWER BUTTON. Slowly turn
SENSITIVITY KNOB clockwise until this instrument gives alarm signal, then turn the knob back until the alarm
signal just stops. Now the sensitivity is maximum. Move the Metal Detector smoothly to scan along the
surface of the object you want detect. Metal Detector will send out audio or vibrating alarm whenever it
detects metal objects. To turn off the Metal Detector, release POWER BUTTON.