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DH-300K Digital Electronic Gold Testing Machine DH-300K Digital Electronic Gold Testing Machine DH-300K Digital Electronic Gold Testing Machine DH-300K Digital Electronic Gold Testing Machine DH-300K Digital Electronic Gold Testing Machine DH-300K Digital Electronic Gold Testing Machine

DH-300K Digital Electronic Gold Testing Machine

699.00 - 1299.00 USD ($)

Product Details:


Price And Quantity

  • 699.00 - 1299.00 USD ($)
  • 1 Set

Trade Information

  • shenzhen
  • 300 Set Per Month
  • 3-7 Days
  • Contact us for information regarding our sample policy
  • standard exporting package
  • All India
  • CE,FCC,ISO9001:2015

Product Description

DH-300K Digital Electronic Gold Measurer, Gold Coin Tester,
Gold Coin Testing Equipment

Please be noted that the machine has limited function which is determined by its' principle.

Following gold type can NOT be tested:

(1)gold has any decoration.

(2)gold has the painting.

(3)gold inside is hollow.


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:0.001g/cm3
Maximum weight:3000g
Weight resolution:0.01g


  • Quickly measure the purity of gold,platinum,and other precious metals.Distinguish if the object is fake or genuine.
  • No damage testing, cleaning and environmental protection.
  • Measuring just need 10 seconds,convenience,stabilization,and accuracy.
  • Multi-mode,gold mode,platinum mode,other precious metals mode can be shifted..
  • Multi-function;the purity of other precious metals can be measured.such as tin,copper,silver.etc.also it can be used as precision balance.
  • Function of top and bottom limitation,it can display OK,HI,LO in the state of
  • qualified,exceed,less.Prompt alarm.
  • Function of automatic zero tracking,buzzer warning,and overload warning.
  • Function of solution compensation.Either water or other liquids can be used as medium.
  • Adopt the completed high-capacity measuring accessories with the transparent injection mould tank,which can resist wear,fall off,and corrosion.
  • Adopt the completed special wind and dust cover,which makes the structure convenient and durable.
  • Interface of RS-232C is included.the printer of DE-40 will be available to connect PC with machine

Measurement Procedure

a)Place sample on testing board to measure weight in air,press ENTER key to memory.
b)Place sample into water to measure the weight in water,press ENTER key.the K value of gold,purity percent,density value will be displayed.

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

Data Table

Model DH-300K DH-600K DH-900K DH-1200K DA-300K DA-600K DA-900K DA-1200K


Maximum weight 300g 600g 900g 1200g 300g 600g 900g 1200g 120g 200g
Weight resolution 0.005g 0.005g 0.01g 0.01g 0.005g 0.005g 0.01g 0.01g 0.001g 0.001g
Density resolution 0.001g/cm3
Measuring time 10S
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;
The K value of mixture of gold and copper;
The K value of mixture of gold and silver;

Display purity percent

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

K value range 9K~24K
Copper and silver proportion setting Cycle seting(default 7:3)


Display value PT percent,density value,volume
PT value range Pt600 - Pt1000
Other Precious Metals Function Only for DA series and DE series:measure the purity percentage of main materials in two kinds of mixture
Display value Only for DA series and DE series:density value,volume,content precentage
setting Only for DA series and DE series:density value of main materials and secondary materials setting
Measuring container

completed injection forming transparent professional measuring tank
(size:length16.9mm high8.3mm)

Parameter setting water temperature setting,measuring medium density setting
principle Archimedes principle
Memory method Two procedures
Correction method Auto calibration with one key,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
power AC 100V - 240V(Europe standard)
Main features Simple operation,digital display,accurate measuring,stable,durable.

Shipping & Handling

Items will be shipped out within 3 to 5 working days upon verification payment.

Items will be shipped out via Fedex,DHL or UPS.it will take around 5 to 7 days to get your door given considering everything goes well.


Carton box

Customer Satisfaction

Please don't hesitate to contact us if you have any questions or concerns before or after your purchase. We are committed to your 100% satisfaction.


Since your feedback is very important to our business`s development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. It`ll just take you 1 minute. Thank you!

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

We, Dongguan Hongtuo Instrument Co., Ltd, a China based company, are pleased to introduce ourselves as a notable testing equipments and machines manufacturer.Our company was established in the year 2000 with two primarily motto, which includes complete client satisfaction and to reach top-most position in the international market. The exceptional quality of our products like Gold Tester,Gold Testing Machine,Density Meter,Universal Tensile Testing Machine,Climatic Chamber,Melt Flow Index Tester,Charpy Impact Testing Machine,Tap Density Tester,Abrasion Tester,Ultrasonic Flaw Detector,Surface Roughness Tester and other Laboratory Testing Equipment, etc. is our company's USP. 

Related Products

Solid series:DH-300,DH-600,DH-900,DA-300M,DA-600M,DA-900M,DA-1200M,DE-120M,DE-600M,DH-300M,DH-120M,DH-3000M,DH-120N

Liqulid series:DH-300L,DA-300W,DE-120W,DH-300W,DH-120W

Multi-function solid and liquid series:DH-300X,DA-300T,DE-120T,DH-300T,DH-120T

Series for rubber,tyre and shoes materials:DA-300DIN,DA-300M,DE-120DIN,DE-120M

Series for powder,magnetism,pottery and porcelain:DA-300MR,DA-300M,DE-120MR,DE-120M

Series for oil length,poriness:DA-300MQ,DA-300M,DE-120MQ,DE-120M

Series for wood,civil engineering:DA-300ML,DA-300M,DE-120ML,DE-120M

Series for cement,metal,plastic:DA-300MB,DA-300M,DE-120MB,DE-120M

Series for testing purity of gold,platinum,precious metal,tin:DH-300K.DH-600K,DA-600K,DA-900K,DA-1200K,DE-120K

Avaliable accessories:DE-40(printer),DE-20B(the components for anticorrosive liquid),DE-20A(the standard components for liquid)


* Tips on getting accurate quotes. Please include product name, order quantity, usage, special requests if any in your inquiry.

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