Metal Detector
Model ID: MD3003B1 Super Scanner upgrade
The Super Scanner 137a-4 is a high performance Hand Held Metal Detector designed to meet the exact requirements of the security industry.
Typical uses will included body search for offensive weapons in crowd control, airport and border security, checking parcels and letters for metal objects and anywhere that hidden metal needs to be detected.
  • Introduction:
    Typical uses will include body search for offensive weapons in crowd control, airport & border security, checking parcels &
    letters for metal objects & anywhere that hidden metal needs to be detected.

  • Specification:
    Power Voltage 9V Standard or Rechargeable Battery
    Power 270mW
    Operate Frequency 22KHz
    Operating Current < 50mA
    Operating Voltage 7V-9V
    Operating Temperature -5°C to + °55C
    Indicator Visual Red & Green LED Sound Speaker
    or Earphone (Earphone not included)
    Object Low
    38 caliber & gun 15cm 20cm
    Pen knife 10cm 15cm
    Razor blade 5cm 10cm
    Export Packing 25 Pieces Per Carton:
    N.W 10.3KG ;
    G.W 16.0KG
    Size: 56.5 × 31 × 46 cm
    Dimension of Unit 440(L) X 110(W) X 60 (H) mm
    Weight of Unit 417G
    Color Black
    Attachment for free Holster
    Attachment for order Rechargeable battery
    1. Detection face
    2. LED ( green for power; red for warning )
    3. Audio Alert
    4. Sensitivity adjustor
    5. Handle
    6. Battery Lid
    7. Low - sensitivity switch
    8. On & Off switch
    9. Rechargeable Battery Socket ( option )
      silent searching - Earphone ( option )
    10. buzzer / vibration switchover
Price: US$18/set DHL free shipping to your office including: detector + rechargeable 800mAH Li battery + charger + holster + box + express freight
Payment: by T/T ( all bank charge on your account ) Package: 25PCs/carton, G.weight: 14KG Delivery: within 3 working days Warranty: 36 months
  • The Super Scanner 137a-4 New operates on one 9 Volt 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.

  • Hold in the unit with the detection face towards the surface, sweep backwards and forwards continuously at a height of 10-30 mm 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 an metal object the detection signal will automatically reduce, therefore it is important that the unit is continually scanning the surface when in use.
Low sensitivity operation
Press the low sensitivity switch during detection, scanner will then only respond to bigger metal objects such as a hand gun, knife, etc and will not respond to small metals such as a coin, key, hatpin, etc. Do not release the low sensitivity switch until you complete low sensitivity detection.

Vibrator button
The detector is equipped with a vibrator button also located at the side of the detector. Vibration function should be used in noisy work situations or in places where the operator does not wish for the audio tune to be heard in his surrounding area. Press this button, vibrator works, release it, audio tune works
Rechargeable Battery Socket
  • You may use a 9 volt rechargeable battery to power the detector
  • It takes four to six hours to fully charge the battery. The battery charger socket is located at the side of the detector
Note: Turn off the detector when charging it.

US Plug

EU Plug

UK Plug

AU Plug

Cycle Life: > 1200 times working: > 72hours
  • If the green light goes out completely of fails to come on or if the unit is making unfamiliar audio tunes, the unit is unstable and should not be used until the battery is recharged or replaced.

  • If the unit is not to be used for a certain length of time it is advisable to remove the battery to avoid battery leakage which could cause serious damage to the detector

  • When not in use, the detector should be stored in a dry warm environment.
Warranty Card

User Unit
Zip code
Product Model
Serial Number
Sale unit
Contact person
Order date
Service record
Notice for Customers:
  1. Our factory warrants that the product will be free of manufacturing defects for a period of one year form the date of purchase.
  2. Following circumstances are above and beyond the free maintenance services.
    1. Damage caused by operation outside the instructions and notices stated in the operation manual or instruction manual. Damage caused by irresistible natural disasters.
    2. Damage caused by taking device apart without supplier agreement.
Factory ( Supplier )

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