AlfaMirage GK-300 - Professional Density Scale & Gold Purity Tester for High-Precision Requirements

The AlfaMirage GK-300 is one of the most reliable instruments for fast and non-destructive analysis of precious metals. Designed for professional use, it combines a high-precision scale with an advanced density measurement system specifically engineered to determine gold purity from 9 to 24 karats.

Whether used in gold buying, jewelry stores, manufacturing, or laboratory environments, the GK-300 delivers clear and reproducible results. It reliably detects counterfeits, incorrect alloy compositions, and gold-plated materials. By measuring the specific gravity, even internal forgeries - those not visible from the outside - can be identified.

Thanks to its user-friendly operation, robust construction, and high measurement accuracy, the GK-300 has been a popular entry-level model for years among professionals who want to analyze precious metals safely and without chemical testing. Scrap gold or multiple jewelry pieces can also be tested simultaneously, with the device automatically calculating the average purity.

Features:
• Determines gold purity from 9 to 24 karats and displays purity in percent (up to 99%)
• Detects gold with lower purity than the stamped karat value
• Identifies gold-plated items and materials with a non-precious metal core
• Reliably distinguishes between gold, platinum, and non-precious metals
• Specific gravity analysis – one of the safest methods for authenticity testing
• Density display from 1 to 0.01 g/cm³ (depending on sample weight)
• No acids, no scratches, no damage to the material
• Measuring range 0.01 - 300 g with 0.01 g resolution
• Ideal for jewelry, coins, bars, and scrap gold
• Calculates average purity when testing multiple items at once
• Ready to use immediately thanks to the included calibration weight
• Intuitive interface - suitable for beginners and professionals alike

Important – Not suitable for:
• Hollow jewelry pieces
• Items containing gemstones (must be removed before testing)
• Materials with a density very similar to gold

Technical data:
Measuring range: 0.01 - 300 g
Resolution: 0.01 g
Gold display: 9 - 24 karats (up to 99%)
Density range: 1 - 0.01 g/cm³
Minimum sample weight: 5 g
Dimensions: 218 x 190 x 170 mm
Device weight: 1540 g
Power supply: 100 - 240 V

Herstellerinformation anzeigen