





Gold / Platinum Tester MZ-K300
Gold / Platinum Tester MZ-K300
$918.05
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Model
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MZ-K300
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Density (specific gravity) test accuracy
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0.001 g/cm 3
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Function
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Direct reading of gold's K number, density (specific gravity), and purity
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Print interface
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Standard RS-232 interface, easy to connect with computer and printer
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The high-capacity, automated electronic balance for direct digital readings of gold Karat number, purity percentage, and density. Relying strictly on traditional touchstone acid tests or surface-level scanners leaves high-volume precious metal buyers exposed to thick gold-plated counterfeits with tungsten or lead cores. The MZ-K300 Precious Metal Densitometer utilizes hydrostatic water displacement principles to measure the entire mass of a piece non-destructively. Featuring an expanded 300g weighing capacity and a standard RS-232 interface for direct printer/PC connectivity, this automated instrument allows gold buying desks, bullion dealers, and pawnbrokers to process larger jewelry items and melt-lots with absolute transparency.
Advantages
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Direct Digital Karat & Purity Output: Eliminates manual lookup charts and multi-step calculations. The specialized internal software automatically cross-references dry mass versus submerged fluid mass, immediately displaying gold Karat values on the digital screen.
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0.001g/cm3 Density Precision: Despite its heavy-duty capacity, the unit delivers highly repeatable specific gravity results down to a single milligram per cubic centimeter, tracking down micro-porosity in cast batches.
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RS-232 Communication Interface: Arrives equipped with a standard RS-232 data port. This allows the balance to sync with external analytical printers to instantly generate physical purity receipts for customers, building bulletproof retail trust.
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Integrated Environmental Shield Assembly: The structural upper enclosure features a built-in top-loading lid mechanism. This insulates the hydrostatic water tank from ambient room drafts and air currents during the critical submersion reading phase.
Free Global Shipping
We process orders within 1-3 business days. Estimated standard international delivery is 6-12 business days.
14-Day Returns
We have a 14-day return policy. Items must be unused, with all original accessories, and in original packaging.
For full details, please refer to our Shipping and Refund policies at the bottom of the page.








