Two Alternative Alert Ways
1. Audio alarm: Push the switch button up,then will turn to audio alarm modes.When detect the target will ring with red LED flashing.
2. Vibration alarm: Push the switch button down,then will turn to vibration alarm modes.When detect the target will vibration with red LED flashing.
Note: When switch button is in the middle means "OFF".The metal dector stop working.
Green LED Lighting: Power on
Red LED Lighting: Target has been detected
Continuing yellow LED: Low voltage directive