Turn on the power switch and hear the "click" sound, indicating that the power supply is connected and the green light is on. If the green light does not show the battery or battery contact, such as continuous sound or continuous vibration, indicating that the battery can not be used again, should replace the new battery.
2. Sound, vibration Switching switch selection: Press the red button switch, alarm mode for vibration. Release the red button switch, alarm mode for sound.
3. Turn on the power, you can carry out a high sensitivity detection, hand grip on the detection surface in the vicinity of the detector sweep, the metal when the alarm sound or vibration, at the same time, the green light into a red light; stop probing, alarm sound or vibration stop, red light turns green.
4. Low sensitivity test: If you need to remove the metal in the small volume of objects, you can hold down the low sensitivity switch. When a metal object is scanned around the object, a warning sound or vibration is made, and the green light turns into a red light; stop probing, sound or vibration stop, red light turns green. The sensitivity was reduced by more than 5 times times. So this is usually a relatively large metal material.