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DH-300K Small Hot Selling Electric Digital Gold Tester Machine Gold Purity Testing Scale

$599.00 / Acre | 1 Acre (Min. Order)
- + Acres available
0piecesselected, US $in total
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Lead Time:
3 day(s) after payment received
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Place of Origin:
Brand Name:
Model Number:
Electronic, Electronic
Universal Testing Machine
Power supply:
AC 100V - 240V
Density resolution:
0.001 g/cm3
Maximum weight:
Minimum weight:
Gold K value analyzer,gold karat purity testing machine
two years;life-long maintenance

Packaging & Delivery

Selling Units:
Single item
Single package size: 
45X20X36 cm
Single gross weight:
4.500 kg
Lead Time :
Quantity(Acres) 1 - 1 >1
Est. Time(days) 3 To be negotiated
Product Description





pawn broking, bank, jewelry shop, precious-metals recovery, jewelry factory, Gemstone Testing Center,precious metals researching.etc.


In accordance with archimedes principle water buoyancy method, GB/T1423 of precious metals testing standard,and so on.


Combine archimedes principle with micro electronic technique;adopt sensor imported from Germany,the purity can be calculated through measuring density of precious metals.features of no damage on sample;simple operation,fast and accurate.


K value of gold,PT value of platinum,density value,purity percentage can be measured.




Density resolution: 0.001 g/cm3

Maximum weight:300g

Minimum weight:0.005g

Measurement time:15s



Density resolution: 0.001 g/cm3

Maximum weight:600g

Minimum weight:0.005g

Measurement time:15s




a)The purity of gold,platinum,and other precious metals can be measured in a short time.the fake can be distinguished.


b)No damage testing, cleaning and environmental protection.


c)Measuring just need 15 seconds,convenience,stabilization,and accuracy.


d)Multi-mode,gold mode,platinum mode,other precious metals mode can be shifted.


e)Multi-function;the purity of other precious metals can be measured.such as tin,copper,silver.,etc.also can be used as precision balance.


f)Function of top and bottom limitation;it can display"OK,HI,LO" in the state of qualified,exceed,less;Prompt alarm.


g)Function of automatic zero tracking,buzzer warning,and overload warning.


h)Function of solution compensation.necessary if liquid other than water is used as a medium for measurement.


i)Adopt the completed high-capacity transparent injection mould sink,which can resist damage and corrosion.


j)Adopt the completed special windproof and dustproof cover,which is convenient and durable.


k)Interface of RS-232C is included.the machine is available to connect PC with printer.



Measurement Procedure


a)Measure the gold weight in air,and then press the ENTER button to memory.

b)Place the gold into water to measure the weight,and then press the ENTER button to the K value of gold,purity percent,density value.


Standard Accessories

Host,sink,test board,tweezer,thermometer,weight,wind and dust cover,a set of measuring particle parts,a set of measuring floating body parts,power transformer





Maximum weight


Weight resolution


Density resolution


Measuring time


Testing board

Completed high-capacity plastic testing board

Measuring type

Traditional gold and platinum jewelry,necklace,bracelet,ring,large bullion,craft,and gold,silver,copper,cadmium,nickel,tin.etc.

Gold mode

Display k value

The K value of mixture of 

gold,silver,and copper;mixture of 

gold and copper;mixture of 

gold and silver;

Display purity percent

The purity content of mixture of gold,silver and copper; ;mixture of 

gold and copper;mixture of 

gold and silver;

K value range


Copper and silver proportion setting

Cycle seting as user’ prefer(default 7:3)


Display value

PT percent,density value,volume

PT value range

Pt600 - Pt1000

Measuring container

completed injection forming transparent professional measurement tank


Parameter setting 

water temperature setting,measuring medium density setting


Archimedes principle

Memory method

Two procedures

Correction method

auto correction with one button,auto detection.

Output method

output and print testing data conveniently with standard communication interface of RS-232C.

Standard accessories

Host,tank,test board,tweezer,thermometer,weight,wind and dust cover,a set of measuring particle parts,a set of measuring floating body parts,power transformer

wind and dust cover

Adopt the unicase dedicated wind and dust cover

Option accessories

DE-40 printer


AC100V - 240V

Main features

Simple operation,digital display,accurate measurement,stable,durable



 (1) Is this machine for professional use in jewellery store? is application to jewellery store,pawn shop,cash for gold,collecting coins.,etc.


(2)What the machine can measure?


Precious metal.such as gold,Karat gold,platinum,silver.
Mixed metal or other alloy metal.
Jewelry materials.such as earring,ring,necklace,bracelet,watchband,belt fastener,gold ingot,gold bar,statue,coin.,etc.


(3)What the machine can display?


karat value,purity percentage,density for gold


PT value,purity percentage,density for platinum


S value,purity percentage,density for silver


percentage content,density for other alloy.


(4)Does this item can read gold purity even if there is a mark says 14K but it is really 12K? does.


(5)What's the accuracy on reading?


Density resolution:0.001g/cm3
Weight resolution:0.005g/0.001g
K resolution:1K/0.1K/0.01K


(6)What's size of sample you can put inside the machine?

for DH series:16.9cm X 9.8cm X 8.3cm
for AU series:15.3cm X 10.7cm X 9.3cm


(7)Does this machine can be connected with PC,and printer? has the RS-232C interface.the measuring data can be output through PC and printer.
The printer is optional when customers make purchasing.


(8)Does this machine can test the specific gravity of gemstones? does.
Also it can test the specific gravity for all kinds of solids materials.


(9)Does this machine can be used as scale?
Yes.This machine has scale function.


(10)What's the power supply?
The default power supply is Europe standard AV100V - 240V.based on customers' requirement.

Customers can choose: Europe type,British type,American type;Australian type.


(11)What's the quality assurance?
The warranty is for two years from the date of receipt.if any parts broken and verified it is within the range of quality assurance(please refer to our quality assurance policy).we shall send new accessories or new machine for replacement.


Packaging & Shipping

  Packing size:42 X 16 X 32cm

Our Advantages




Our Services


  • 100% Competitive price    we are the original manufacturer of densimeter for years, the large scale production make our products more competitive, that’s the reason we are very confident to offer the most possible competitive price for the same level testing instruments in the world.
  • High quality standards   we have the powerful professional researching and technology team to support quality;Our quality has been proved by the good market reaction for years;Our product are built to meet the industrial standards and global standards;Every instrument get checked and approved by our QC before delivery.
  • Faultless service   we have the professional customer service team to provide the one to one service for you;we can help you to enjoy the one-stop service without any worries;we have the completed after-sales service policy and quality insurance policy;we guarantee instruments for one year and life-long maintenance(Gold Purity Tester for two years)
  • Efficient logistics   we have the stable partner to help us to deliver the goods to the any corner of the worldwide shortly.Air shipment;International express:DHL/UPS/FEDEX/TNT(5 days to 7 days)
  • OEM service   We are the original manufacturer of densimeter,that is verified by the third party and Alibaba on site;We can provide you OEM service and print your logo on the instruments
Company Information