ANENG MD-3003B Sensitivity Metal Detector Professional Metales Search Finder Pinpointer Portable Security InspectionTool

Features  1 High sensitivity 2 Simple and convenient to use no need to adjust The 3 9V battery is reduced to about 7V and the detection distance is unchanged 4 Save electricity can work continuously for more than 40 hours 5 There are two options for alarm mode sound and vibration 6 When the battery runs out there is automatic continuous sound or vibration alarm 7 With the function of power on and power off sound or vibration prompt 8 There are high and low sensitivity options 9 There is an external charging jack Specification  Power Voltage 9V Standard or Rechargeable Battery Not included Power 270mWOperating Frequency 22KHzOperating Current 50mAOperating Voltage 7V 9VOperating Temperature 5°C to 55°C OPERATION   The MD 3003B1 operates on one 9volt standard or rechargeable battery To install the battery slide off the battery cover and place the battery into its compartment while matching the symbols Turn the unit on by pushing the on off switch until it clicks on and the green LED is lit The detector is now operational although an increase in sensitivity and depth range can be achieved by turning the sensitivity adjuster until the red LED is lit and a constant audio tune is heard Turn the sensitivity adjuster anti clockwise until the red LED just goes out and the tone fades The detector is now tuned for optimum sensitivity and depth range Holding the unit with the detection face towards the surface sweep backwards and forwards continuously at