The 3003B Operates on one 9volt standard or rechargeable battery. To install the battery, slide off the battery cover and place the battery in to 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 and increase in sensitivity and depth range can be achieved by turning the sensitivity adjuster until the LED turn to red and a constant audio tune is heard.. Turn the sensitivity adjustor (anti-clockwise) until the red LED just turn to green the tone fades. The detector is now tuned for optimal sensitivity and depth rage.


Holding the unit with the detection face towards the surface, sweep backwards and forwards continuously at a height of 10-30mm above the area to be scanned.


The presence of metal will be indicated by the audio warning tone and the red light coming on. If the detector is held still over a metal object the detection signal will automatically reduce, therefore it is important that the unit is continually scanning the surface when in use.


Target Sensitivity:


  • Medium Pistol 15cm
  • Pen Knife 12cm
  • Razor Blade 7cm


Colour Black
Dimensions 410(L) x 85(W) x 45(H) mm
Weight 411g
Battery Standard 9v PP3 or
Optional Rechargeable Battery

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