Description

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From the brand

Gain Express Holdings Ltd.

We are a high-tech enterprise offering independent development, design, production, and sales of top-quality instrumentation globally

Gain Express is a manufacturing and trading company that researches and produces high-tech & high-quality products, and offers a wide range of electronic products & testing instruments.

Gain Express has years of trading experience (B2B & B2C) with many customers from North America, South America, Asia, Australia/Oceania, Europe, Africa, the Middle East and so on.

Gain Express Store

CO2 Controller Monitor

PH Monitor

Soil PH Moisture Meter

PAR Light Meter

Geiger Counter

Loupe Magnifer 10X

Bluetooth Pool Water Tester

Reveals Gemstone Colors: Our Medium Spectroscope detects absorption patterns, whether by shining a light through transparent stones or viewing reflected light from opaque stones. Distinguish natural colors, irradiated diamonds, and synthetic stones.
Spectrum Recognition: Inside, a raster-type pattern forms a rainbow spectrum with black or white interruptions. Learn to recognize this pattern for accurate gemstone analysis.
Compact & Durable: Made of durable aluminum, our spectroscope is 55mm long and 15mm in diameter, ensuring portability and longevity.
Versatile Gemstone Tool: Analyze loose or mounted stones with ease. Identify selective absorption of wavelengths to differentiate between natural and treated diamonds, and spot synthetic stones.
Convenient Storage: Includes a leather pouch for safe and portable storage, allowing you to explore gemstone spectra anytime, anywhere.

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