GoldScreenPen - Gold & Silver Tester for Coins, Bars, Cutlery and precious metals.

Please note: This product is available by preorder only. Once your order has been placed, please allow up to two weeks for it to be prepared and shipped.

⚠️ Important – Please Read Before Purchasing

Please read the instruction manual thoroughly before purchasing. This device requires specific testing procedures and may not be suitable for all applications.

If you are unsure whether this device is suitable for testing your gold, silver, or other materials, please contact us before purchasing. We cannot be held responsible for incorrect use or purchasing a device unsuitable for your intended application.

Protect your investment with the GoldScreenPen by Goldanalytix, a professional precious metal testing device designed for fast, reliable and non-destructive authenticity testing of gold, silver and other metals.

With the growing number of counterfeit gold coins, tungsten-filled bars and plated silver products on the market, secure verification is essential. The GoldScreenPen combines advanced electrical conductivity testing technology with a compact, modern design, making it the ideal tool for investors, dealers and recycling professionals.

Reliable Detection of Gold & Silver Counterfeits
The GoldScreenPen measures the electrical conductivity of your test object with a penetration depth of up to approximately 0.7 mm (depending on the material’s conductivity). This allows reliable analysis beneath thin surface layers and helps detect sophisticated counterfeits, including tungsten cores and plated metals.

The penetration depth depends on the electrical conductivity of the tested material and determines the maximum material thickness that can be analyzed. For optimal performance, the GoldScreenPen is recommended for coins and small bars up to approximately 28 gram - 1 ounce.

✔ Non-destructive precious metal testing
✔ No acids or scratching required
✔ Detects tungsten counterfeits
✔ Works through thin foil packaging
✔ Fast and precise results

Ultra-Precise Measuring Tip.
Equipped with one of the world’s smallest sensor coils, the GoldScreenPen is ideal for testing:

• Silver coins
• Gold coins
• Small gold bars (up to approx. 28 gram - 1 oz)
• Small silver bars (up to approx. 28 gram - 1 oz)
• Silver cutlery and flatware
• Antique silverware
  

The measurement is carried out exclusively using the measuring pen. The measuring surface on the device is purely decorative and not used for analysis.

Penetration Depth (approx., depending on material conductivity)

• Silver: up to 150 µm
• Gold (fine gold): up to 300 µm
• Krugerrand alloy (22k gold alloy): up to 325 µm

Suitable for Professional & Private Use
The GoldScreenPen is widely used by:

• Precious metal dealers
• Coin and bullion traders
• Gold and silver investors
• Pawn shops
• Antique dealers
• Recycling and disposal companies

Private collectors
Thanks to its intuitive operation and portable design, it delivers quick and dependable material verification whether in-store, at trade fairs, antique markets or on-site evaluations.

Modern Design – Proven Technology
The proven GoldScreenPen from Goldanalytix now features a new design while maintaining its trusted conductivity-based testing technology for accurate precious metal authentication.

Important Notice : 
For comprehensive authenticity verification, additional testing methods such as density testing are recommended. Please refer to the detailed instruction manual for full guidance.

Warranty:  damage to the pen caused by pressing too hard is not covered by the warranty.

Scope of Delivery

• GoldScreenPen (Languages: German, English, Spanish, French)
• Probe pen
• Jack cable
• Probe pen holder
• USB-C charger
• Detailed instruction manual
• Practical padded carrying case
• Shipping carton

Specifications

• Product Name: GoldScreenPen
• Brand: Goldanalytix
• Testing Method: Electrical conductivity measurement
  
• Recommended Object Size: Coins and small bars up to approx. 1 ounce
• Measurement Type: Non-destructive testing
• Application Areas: Gold, silver and other precious metals
• Suitable For: Coins, small bars, silver cutlery, irregular metal objects, scrap & recycling metals
• Sensor Type: Ultra-small precision sensor coil
• Operation: Handheld measuring pen
• Languages Available: German, English, Spanish, French
• Power Supply: USB-C charging
• Portability: Mobile use with padded carrying case

Instruction Manual Goldscreensensor

Special cases:

• Older coins/bars
  Older coins/bars (defined here as coins/precious metals before World War II) and especially objects from the 19th century may vary in their composition. Although the gold content is correct, some coins may show variations in the remaining composition. Due to the less than optimal manufacturing and analysis conditions at the time, such coins may have been contaminated with other metals, changing the conductivity of the coin and making it often impossible to reliably authenticate older coins and bars with the GoldScreenPen.
• Silver coins with a fineness of less than 900
  Silver has the highest conductivity of all metals. Even a proportion of just one per mille of foreign metal in silver coins leads to a relatively high drop in conductivity. For silver coins with a fineness of less than 900, the effect of the drop in conductivity is particularly strong. It is therefore not possible to determine the exact silver content for alloys in the range of 500 to 890, especially for typical silver commemorative coins, by using the GoldScreenPen. As the differences in conductivity between various silver alloys are sometimes minimal, the different relevant alloys
  (e.g. Silver 835 from the Latin Monetary Union) were grouped into larger ranges. This makes it possible to check whether the conductivity is plausible for the presence of silver. The important distinction between fine silver and silver 900/925 is not a problem.
• Silver coins special cases
  Our tests have shown that there are 999 silver coins that have lower conductivity values in the range of 56-59 MS/m when measured with the GoldScreenPen and are therefore output as “special cases”. These coins include the 1 ounce Krugerrand silver coins, the “Owl of Athens” and some of the Tokelau coins. Possible reasons could be a particularly unusual minting or shape, or that the remaining one per mille of the alloy contains ferromagnetic materials.
• 5 DM commemorative coins
  Particularities of the 5 DM commemorative coins from 1979 (Otto Hahn) to 1986 (Frederick the Great): This series of commemorative coins has a weight of 10.0 g (previous years 11.2 g) and is made of a copper-nickel alloy with a nickel core (previous years Silver 625). These coins show a conductivity of about 2.4 MS/m (Silver 625 at approx. 47.0 MS/m).
• Alloy impurities e.g. for Vrenelis 20 CHF
  The range of possible impurities and their consequences are impossible to analyse in their entirety. However, in our tests we found that Vrenelis 20 CHF, for example, sometimes had 10 to 20 times the iron content of cleanly produced Vrenelis of the same year. The gold content was correct for all coins (90 % gold content), but for some coins a significantly higher iron content in
  addition to copper was detected using other analysis methods, which suggests an impure alloy composition. As the GoldScreenPen is a very precise eddy current measuring device, such impurities are detected and lead to lower conductivity values for the measured coins. Such coins are not counterfeits, but merely uncleanly crafted variants of genuine coins, which often contain ferromagnetic impurities (iron or nickel). It is therefore essential to use other testing methods for such coins (e.g. density testing or XRF-analysis) in order to distinguish whether the coin is
  indeed a fake of just one of the cases described above.