silver and gold test kit

Bangkok, Thailand — From February 22 to 26, 2025, VRAY Instrument Limited successfully participated in the 71st Bangkok Gems & Jewelry Fair. This major event for the global jewelry industry provided us with an excellent platform to showcase our latest advancements in X-ray fluorescence (XRF) technology for precious metals analysis. Read More

Istanbul, Turkey — From April 16 to 19, 2025, VRAY Instrument Limited successfully participated in the prestigious Istanbul Jewelry Show (IJS), a world-leading exhibition for the jewelry industry. This event brought together professionals, manufacturers, and buyers from around the globe, and VRAY Instrument proudly showcased its latest innovation: the VR-X5 XRF Analyzer. Read More

Jakarta, March 10, 2024 — VRAY Instrument Limited, a leading innovator in precious metal analysis technology, proudly unveiled its revolutionary XRF Precious Metal Analyzer at the prestigious 15th Jakarta International Jewellery Fair. The event, which ran from March 7th to March 10th, brought together industry experts, jewelers, and enthusiasts from around the world to explore the latest trends and innovations. Read More

In general, XRF gold testing machines are highly accurate, reaching precision levels of 99% or more. VRAY's equipment, however, elevates this precision to a new level. Our high-end models, such as the VRAY-S5, can achieve a convincing accuracy of ±0.03% to ±0.1%. Read More

The accuracy of an XRF Gold Tester depends on several factors, including the model of the tester, the quality of the sample, and calibration. At VRAY Instrument, The VR-T5, VR-T6, and the VR-T7 XRF analyzers are High-end models, often used in the precious metals industry, can achieve an accuracy level as high as 0.01%. Read More

VRAY Instrument proudly showcased its cutting-edge gold tester and XRF analyzer technologies at the prestigious Malaysia Gold & Jewellery Trade Exhibition 2025. Read More

A Compact XRF Spectrometer is a non-destructive X-ray Fluorescence (XRF) analytical instrument specifically designed with a small footprint for efficient use in spaces where room is limited, such as jewelry retail stores, pawn shops, or small workshops. Despite its smaller size, it provides accurate and rapid elemental analysis of various materials, particularly suited for gold testing due to its precision in identifying and quantifying precious metals and common alloys. Its "compact" nature ensures it fits seamlessly into retail environments without compromising on performance or ease of use. Read More

A Portable XRF Precious Metal Analyzer is a compact, mobile instrument that utilizes X-ray Fluorescence (XRF) technology to provide non-destructive, on-site elemental analysis and purity verification of precious metals like gold, silver, and platinum. Designed for flexibility, these analyzers (like the VRAY VR-M5) are lightweight and typically feature built-in screens and power sources, enabling users to perform accurate tests with fast detection speeds (e.g., 30 seconds) directly at the point of need, whether in a field setting, a customer's location, or a showroom for on-site gold testing. Read More

Guide on how to use a silver gold tester step by step 1.Power On: Turn on the machine and launch the software. 2.Preheat: Allow the instrument to preheat for 10 minutes. 3.Calibrate: Place the calibration sample in the detection area and perform instrument calibration. 4.Load Sample: After calibration, remove the calibration sample and place your test sample in the detection area. 5.Start Test: Close the machine cover and press the "Start" button to begin the test. 6.Await Results: A preliminary analysis result is typically displayed within 3 seconds. The complete analysis result will be available within 30 seconds. 7.Report Handling: When the test is complete, select the "Print" icon. Choose to print either an A4 report or use the Bluetooth thermal printer. Read More

A Low-Cost Gold Tester for Jewelry is an accessible and affordable X-ray Fluorescence (XRF) machine designed to provide non-destructive, accurate elemental analysis of gold, silver, and other common precious metals in jewelry. Specifically targeted at jewelry appraisers and gold buyers who need reliable purity verification without a significant capital investment, these desktop testers offer essential functionality for identifying metal composition, making them a cost-effective alternative to more expensive analytical instruments. Read More