---
product_id: 716434198
title: "Digital Electronic Gold Purity Tester Machine,Precious Metal Authenticity Tester,Gold Purity Testing Machine,Gold Density Meter,Purity Density Meter,MDJ-300K"
brand: "gtannd"
price: "$1178.69"
currency: USD
in_stock: true
category: "Gtannd"
url: https://www.desertcart.us/products/716434198-digital-electronic-gold-purity-tester-machine-precious-metal-authenticity-tester
store_origin: US
region: United States of America
---

# digital purity & density readout long-lasting rechargeable battery 0.01g precision weighing Digital Electronic Gold Purity Tester Machine,Precious Metal Authenticity Tester,Gold Purity Testing Machine,Gold Density Meter,Purity Density Meter,MDJ-300K

**Brand:** gtannd
**Price:** $1178.69
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock the true value of your metals—accuracy meets convenience in one sleek device!

## Quick Answers

- **What is this?** Digital Electronic Gold Purity Tester Machine,Precious Metal Authenticity Tester,Gold Purity Testing Machine,Gold Density Meter,Purity Density Meter,MDJ-300K by gtannd
- **How much does it cost?** $1178.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/716434198-digital-electronic-gold-purity-tester-machine-precious-metal-authenticity-tester)

## Best For

- gtannd enthusiasts

## Why This Product

- Trusted gtannd brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Portable Powerhouse:** Built-in rechargeable battery ensures you stay powered on-the-go—perfect for fieldwork or client visits.
- • **Instant Digital Clarity:** Clear digital display shows purity, density, weight, and K number at a glance—no guesswork needed.
- • **Non-Destructive Testing:** Safeguard your precious metals with damage-free testing that preserves value and integrity.
- • **Precision You Can Trust:** Ultra-accurate 0.01g weighing and 0.001g/cm³ density resolution for flawless purity analysis.
- • **Versatile Metal Mastery:** Test gold, silver, platinum, palladium, and more—ideal for jewelers, pawnshops, and metal pros.

## Overview

The MDJ-300K Digital Electronic Gold Purity Tester offers precise, non-destructive testing of gold and other precious metals with 0.01g weighing accuracy and advanced density measurement. Featuring a clear digital display and rechargeable battery, it’s a portable, versatile tool trusted by jewelers and precious metal professionals for reliable purity verification.

## Description

Specifications:Product Name: Gold Density Purity TesterModel: MDJ-300K/MDJ-600K/MDJ-1200K/XF-120K/XF-200KWeighing Range:MDJ-300K: 300gMDJ-600K: 600gMDJ-1200K: 1200gXF-120K: 120gXF-200K: 200gWeighing Accuracy:MDJ-300K/MDJ-600K/MDJ-1200K: 0.01gXF-120K/XF-200K: 0.001gDensity Resolution:MDJ-300K/MDJ-600K/MDJ-1200K: 0.001g/cm3XF-120K/XF-200K: 0.0001g/cm3Recommended Sample Test Weight:MDJ-300K/MDJ-600K: 5g or moreMDJ-1200K: 10g or moreXF-120K/XF-200K: 2g or moreApplicable To: Gold, silver, K gold, palladium, platinum, platinumJewelry industry, bank, pawn industry, gold and precious metal research laboratories.Test Steps:1. Test the weight of gold in air2. Test the weight of gold in water3. The screen directly displays the value of the test sample, and the printer can be connected to print the test valueAdvantages: high cost performance, can easily measure gold-plated productsDisadvantages: hollow gold products cannot be measured

## Features

- 【Gold Density Purity Tester】: This product can accurately determine the purity of gold, silver, K gold, palladium, platinum and other precious metals. It uses advanced technology to analyze the density or specific of the material, with high detection accuracy
- 【Digital Display】: The tester is equipped with a digital display that can display the measured density, weight, density, purity, K number of the tested material, providing accurate values ​​at a glance
- 【Non-destructive Testing】: The machine provides non-destructive testing, which means that the material being tested will not be damaged or changed during the test. This non-destructive feature is especially important for precious metals because it will not damage the item
- 【Easy To Carry】: Built-in rechargeable battery, more convenient to carry, long standby time is more suitable for use when going out, and can also prevent the trouble caused by power outages
- 【Wide Application】: This tester is not limited to gold, but can also be used to test the purity of other precious metals such as Perkin, Platinum, K Gold, Silver, Palladium. This versatility makes it a valuable tool for jewelers, pawnshops and precious metal dealers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #1,576,018 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #402 in Jewelry Gold Testers |

## Images

![Digital Electronic Gold Purity Tester Machine,Precious Metal Authenticity Tester,Gold Purity Testing Machine,Gold Density Meter,Purity Density Meter,MDJ-300K - Image 1](https://m.media-amazon.com/images/I/61+aMOU2lZL.jpg)
![Digital Electronic Gold Purity Tester Machine,Precious Metal Authenticity Tester,Gold Purity Testing Machine,Gold Density Meter,Purity Density Meter,MDJ-300K - Image 2](https://m.media-amazon.com/images/I/61dF+RQUK5L.jpg)
![Digital Electronic Gold Purity Tester Machine,Precious Metal Authenticity Tester,Gold Purity Testing Machine,Gold Density Meter,Purity Density Meter,MDJ-300K - Image 3](https://m.media-amazon.com/images/I/71LyK4Jy0fL.jpg)
![Digital Electronic Gold Purity Tester Machine,Precious Metal Authenticity Tester,Gold Purity Testing Machine,Gold Density Meter,Purity Density Meter,MDJ-300K - Image 4](https://m.media-amazon.com/images/I/71Rw82YdXSL.jpg)
![Digital Electronic Gold Purity Tester Machine,Precious Metal Authenticity Tester,Gold Purity Testing Machine,Gold Density Meter,Purity Density Meter,MDJ-300K - Image 5](https://m.media-amazon.com/images/I/71drZO2dHoL.jpg)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-03*