sound/LED alarm indicator china wholesale gold finder 2 metal detector

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US $0-140 / Pieces | 1 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Guangdong, China
Brand Name:
Model Number:
Maximum detection depth:
Target size:
Diameter 2mm
Gold,Sliver and Non-Ferrous Metal
Mode of operation:
Balance / Recognition
Metal Detector
T/T, Western Union
Gorsss weight:
Package size:
Supply Ability
Supply Ability:
10000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
Gross weight: 6.40kg/piece Package size: 64*37*13.5cm
Lead Time :
withing 3 days after the payment received


Metal Detector Gold Ground Metal Gold Detector Iron Instrument MD20    


Product Introduction

MD20 underground metal detector using imported technology and components produced new products , compared with other similar products in china domestic , MD20 metal detector has a great probing depth , positioning accuracy , high resolution , energy saving and environmental protection , instrumentation and long service life characteristics , maximum detection depth up to 2 meters.

MD20 underground metal detector using advanced balance -conditioning system , the only select metal signal we need to eliminate all the debris, caused by the signal only beep only when the exploration site at the metal target , thus effectively excluded mineralization interference , and effectively improve the depth and accuracy of the instrument 's probe .


MD20 underground metal detector is mainly used in :

1.Scrap metal recycling;

2.Detect buried underground metal artifacts and treasures of gold and silver;

3.Telecommunications / electricity and other municipal departments exploration in the construction of underground lines, pipes and cables toward positioning

4.Archaeological and mining sectors , archeology , exploration the iron , prospecting research;

5.Detect metallic foreign body in the raw materials , fuel , food

6. Military demining;

7. ** Detection of the criminal investigation department search

8. Customs inspection and safety check

9. Check mail, baggage and parcel of the metal items , etc.


The main technical parameters

1.Maximum detection depth: 2-3meters

2.Mode of operation: Balance / Recognition

3.Main vibration frequency: 455KHZ

4.Signal frequency: 433KHZ

5.Power Consumption: 1W

6.Power supply: DC12V



Instrument control key description

1.Push button

Below in the instrument has a button, and is very important in use of the instrument . The adjustment of the instrument , in the course of their work , often to press and release the button . By pressing/release the button , the machine memory circuit automatically note of the status of the adjustment . If you forget to press/release the button , it will affect the detection sensitivit.


2. Tuner knob

  The role of the tuner is tune out " the critical sound " . Make the tuner clockwise rotation from the left , first opened the power switch, continue to be rotated to the right , the sound from scratch , from small to large. During detection , it should be transferred to a slight " buzzing" sound , the sound is very small , can barely hear , which is call "critical sound” . Only transferred to such faint sound , the instrument only has the highest sensitivity, If the critical sound tune too or do not bring up the sound , the instrument sensitivity will reduce.

Prior to the tune of the " critical sound” , be sure to press the button , after a good tune , then release the button.

" Critical sound ” detection process gradually increases or decrease or even disappear , then press /release the button so that "critical sound” recovery then probe.


3. Work adjustment knob

Work adjustment knob is in line with the operating mode switch, it is around 0-10 scale. Mineralized material interference " to balance operation by adjusting this knob can be excluded , and use it to identify the mode of operation , to distinguish between different types of metal.


4. Power switch

Instrument after use , set the power switch button dial to the off position , turn off the power


5. Operating mode switch

The operating mode switch has two gears : one is balanced, the other is identify.

Switch gravitropic balance file , the instrument sounds of all the metal will , but exclude the impact of the " mineralization reaction ". If the switch to identify the file , the instrument can distinguish between different types of metal .


6.Headphone jack and charging jack

The instrument comes standard with headphones and charger. Plug in headphones, the sound of speaker is interrupt, whe the charger is charging, the fuselage charge indicator light.





Warranty Policy:


1. In one month, if you’re not satisfied with product or product damaged (Not man-made), you can change unconditionally. (About changing, please contact customer service.), return shipping cost is buyer’s responsibility.


2. One year warranty for all accessories and lifelong service.


The Quality of Our Products:


1. First of all, we promised that all the products are brand-new.


2. Secondly, we have inspected quality before leaving the factory, those include but not limited to specifications, appearance, function, package, accessories and so on.


3. Thirdly, we package the products by superior high quality carton to ensure the completeness and low delivery loss.


4. If you find out any problem when receive the products, we are in charge of securing service.


Delivery Time:


1. We have thousands of products in stock. So, once payment confirmed, we will deliver your goods in 24 hours.




1. We only support world-famous Express companies (EMS, DHL, UPS, FedEx), faster and safer by airline, except Long range detectors which set batteries inside (TX-MPI, VR1000BII, VR Long Range King). For reducing our shipping fee, large size articles (Walkthrough metal detector gates, X-ray security inspection machines, Needles inspection for Food industry, etc) will go Ocean shipping.


The Customs:


1. We will declare on the invoice that it’s a gift or write down a lower price there to help you reduce tax.


2. However, you will still need to pay the tax for the products if the customs ask.




T/T through HSBC Bank or Western Union


About US:

Shenzhen Spyonway Electronics Inc. set up in 2004, is a professional manufacturer specialized in security series products. Spyonway is a member of China Security Industry Association. Since the establishment of the company, Spyonway has been devoted to manufacturing security and protection products, such as hand held metal detectors, ground search metal detectors, security doors and metal detectors, commodity supermarket security antennae, underwater detectors and so on. Spyonway cooperates with a number of well-known foreign chip companies. We have a strong technical force and development speed. Spyonway has a strict management system. Our products are used in central government, national research institutions, airport court procurator ate, jail, jailhouse, public security army school, big event sports hall, highway and railway station and so on. At the same time, Spyonway products are also suitable for all places in need of security protection like shopping mall, fashion shop, drug store, video shop, optical shop.