Professional Digital Refractometer for Gemstones, 700mAh Battery, Accurate 0.001 for Jade, Crystal, Ruby, Sapphire, Refractive Index 1.300-3.000, Essential Identification Tool

➤Are you still worrieds about not being able to quickly distinguish genuine diamonds from fakes, causing clients to question your professional authority?- The gemstone refractometer uses precise measurements of the refractive index—an undeniable physical metric—to instantly determine the authenticity of a diamond, allowing professionals to see for themselves.➤Feature- Precision Measurement: Accuracy up to ±0.005, minimum scale value of 0.001.- Large LCD Backlit Screen.- Durable Aluminum Alloy Table.- Insulation Switch: Made of ABS material.- Built-in 700mAh lithium battery, up to 10,000 measurements.➤SpecificationsSize: 135 x 78 x 24 mm (5.31" x 3.07" x 0.94")Weight: 250g (0.55 lbs)Measurement Range: Refractive Index 1.300 ~ 3.000Accuracy: ±0.001Measurement Error: ±0.005Battery Capacity: 700mAh BatteryApprox. Measurements per Charge: ~10000➤Package Include:1 * Gemstone Refractometer2 * calibration Block (1*1.487,1*1.806)1 * Aluminum Box1 * Tweezers1 * Countertop cover1 * Instruction Manual➤NotesFor optimal accuracy, always calibrate the device using the included calibration blocks (1.487 & 1.806) before each use session.

• Experience professional-grade precision with our Digital Mstone Refractometer. Featuring a high-precision optical system and sensitive sensor, it delivers fast and accurate refractive index (RI) measurements. With a range of 1.300-3.000, ±0.005 accuracy, and 0.001 resolution, it's ideal for professionals and enthusiasts seeking reliable data for their measurement needs.
• **Short Description:** Introducing our Wide Cali for Mstones, designed for precise identification of uniaxial and biaxial crystals. This digital m er effectively detects single and double mstones, including Moissanite, Diamonds, and Colored Mstones. Ideal for appraisers and collectors, it’s not suitable for semi-hed products or stones smaller than 2.0mm². A vital tool for serious enthusiasts!
• Experience the Convenience of Our Oil-Free Refractometer: Unlike traditional methods, our refractometer simplifies your measurement process without the need for refractive oil. This tool is ideal for gem identification, featuring two calibration blocks (1.487 & 1.806) for precise readings. Effortlessly distinguish between uniaxial and biaxial crystals with accurate RI values, ensuring reliable results every time.
• Experience reliable performance with our Digital Refractometer, utilizing total internal reflection for accurate refractive index (RI) measurements. Weighing only 250g, its compact and lightweight design ensures easy portability. The corrosion-resistant aluminum alloy shell enhances durability, making it perfect for various applications in scientific research, food processing, and more.
• Jewelry Authenticity Tester features a durable aluminum alloy workbench for stable precision. The ABS engineering plastic power switch and built-in triple flat protect ensure safety during use. With a large LCD backlit screen, you can read measurements easily, even in low light. Powered by a 700mAh rechargeable lithium battery, it supports up to 10,000 measurements per charge, making it ideal for labs, field trips, and jewelry stores.