MatsuHaku Density Tester

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Precious Metal Purity, Gold Karat Tester GP-120K

Precious Metals Density Tester

  • GP-120K


Suitable for :

Jewelry industry , Bank , Pawn industry , Gold and Precious Metal research lab .

Principle :

According to the buoyancy method of Archimedean principle , can show gold karat , density and purity% rapidly and accurately .


The maximum weight
Weighing Range
Weighing precision
Density precision


●Only two weighing steps, karat, density and purity of gold can be showed rapidly and accurately.

●With the mixture proportion function, it can be used for testing density and purity of platinum, silver and other metals.

●With the special software design, it can directly and circularly show the gold karat (including  gold-copper-silver, gold-silver, gold-
copper), gold purity%(including gold-copper-silver, gold-silver, gold-copper)

●With the function of HI and LO limit, the wide karat range from 9K to 24K and the HI and LO value can be set freely.

●No stains and scratches left on gold after testing, it doesn’t need to use the sulfuric acid solution to test the standard samples.

●Pure water or distilled water can be used as testing medium, it is low cost and easily got.

●By adopting the design of big tank, it can decrease the inaccuracy caused by supporting wire’ s buoyancy.

●Can’ t test hollow samples and the samples with precious stones; it can be used as general balance.

●Standard size of water tank: 150 * 100 * 90 mm.