Reviews Refractive Index Measurement Device

Gem Refractometer, RHG181 1.30-1.81 Jewelry Professional High Accuracy Gemstone ldentification Portable Gemological Gemelogy Refractometer with Electric Torch, Reflective Index Fluid for Gemologists

  • Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones..
  • Gemological (Gemstone) Refractometer is your primary and most powerful tool in gemstone identification. As with a typical critical angle refractometer, it will measure the Refractive Index of faceted stones..
  • This Gemological refractometer is a low cost, lightweight measuring instrument used by jewellers and traders of gemstones to measure polished stones over a refractive index range of 1.30 to 1.81 RI..
  • The instrument can also be used to identify whether a particular stone is Isotropic or Anistropic (uniaxial or biaxial)..
  • In fact, you can also use this tool to measure R.I. for many minerals in crystal form as long as the crystals have a flat and polished face..
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Jewelry Gem Refractometer, RHG181 1.30-1.81 Professional Gemstone ldentification Gem Refractometer,Portable Jeweler Tester Tool, Gemological Gemstone Gem Refractometer

  • WITH THE HELP OF CONTACT FLUID (RI FLUID) : An optical contact between glass and gemstone is made. Gem refractometer You can measure or test the refractive index of faceted stones, transparency or opacity, as well as their beauty, durability and scarcity.
  • PROFESSIONAL FUNCTION: Gemstone Refractometer is the most important and powerful tool for identifying and authenticating polished gemstones and semi-precious stones, as well as for observing the optical properties and structure of precious stones.Professional Gemstone ldentification.
  • USER-FRIENDLY DESIGN: Refractometer gemstone with integrated light source you can use it in different environments. Gemological Gemstone Gem Refractometer, Automatic Temperature Compensation (ATC) that adjusts to the climate. Low battery consumption for long operating times.
  • PRODUCT DETAILS: Refractive index range between 1.30-1.81 RI, power supply is AA battery (not included). And size is 13 * 6 * 3.5cm / 5.1 * 2.4 * 1.4inch. Gem refractometer, Lightweight and compact, easy to transport.
  • SATISFACTION GUARANTEE: This refractometer is designed to measure the refractive index of gemstones and solid materials.If you have any questions about the product, do not hesitate to contact us or ask questions in QA, Rotekt will solve yo....
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Rhino Honey Digital Refractometer (0-90% Brix, 5-38%Water, 33-48Be', 1.3330-1.5177nD) with ATC, IP65

  • RHINO Honey Refractometer can be used to measure of sugar content, Baume, refractive index and water concentration, as well as high sugar related liquids, such as high sugar content, honey, jellies, jams, and syrups, to help monitor and control sugar concentration in foods and drinks..
  • This model has an automatic temperature compensation feature which increases measurement precision which is performed at 32 - 104°F (0 - 40°C) instead of 68°F (20°C)..
  • Products are the small size with a beautiful appearance, easy to use, fast and stable response..
  • Rhino Honey Digital Refractometers are particularly easy to use and very sturdy. The shell of the product is made of high-performance waterproof and shockproof material..
  • We provide two years of product quality warranty..
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Digital Refractometer Digital BRIX Tester Sugar Meter Ideal for Drinking Water Beverage Kombucha Orchard Fruit Juice Carbohydrate Content High Accuracy Portable Refractive Index Tester 0-58%

  • ACCURACY AND CONSISTENCY: Refractive index is effected by temperature, so we set Automatic Temperature Compensation (ATC) function for BRIX reading be accurate at various temperatures..
  • BIG COLOR SCREEN WITH BACKLIT: Unit with a big backlight screen makes you easy to see the readings clearly in poor light..
  • EASY AND INSTANTLY: Just turn BRIX meter on and drip several drops of solution in the metal sample groove, press READ button and wait for 3 seconds to get result. Very easy to operate..
  • MULTIPURPOSE TESTER: Tester for orchard worker to know your fruits maturation anytime. Unit has refractive index, BRIX and temperature functions 3 in 1 so can be use for various purposes as beverage shop, kombucha making, pummelo, orange, watermelon juice test, home drinking and cooking, food and catering, laboratory experiment, etc..
  • ENERGY CONSERVATION: Our product will deliver with 2 batteries. When you finished your test but forget power it off, unit will shut down automaticly in 60 seconds without any operation. Thus this function will save energy..
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Digital Refractometer Digital BRIX Tester Sugar Meter Ideal for Drinking Water Beverage Kombucha Orchard Fruit Juice Carbohydrate Content High Accuracy Portable Refractive Index Tester 0-95%

  • ACCURACY AND CONSISTENCY: Refractive index is effected by temperature, so we set Automatic Temperature Compensation (ATC) function for BRIX reading be accurate at various temperatures..
  • BIG COLOR SCREEN WITH BACKLIT: Unit with a big backlight screen makes you easy to see the readings clearly in poor light..
  • EASY AND INSTANTLY: Just turn BRIX meter on and drip several drops of solution in the metal sample groove, press READ button and wait for 3 seconds to get result. Very easy to operate..
  • MULTIPURPOSE TESTER: Tester for orchard worker to know your fruits maturation anytime. Unit has refractive index, BRIX and temperature functions 3 in 1 so can be use for various purposes as beverage shop, kombucha making, pummelo, orange, watermelon juice test, home drinking and cooking, food and catering, laboratory experiment, etc..
  • ENERGY CONSERVATION: Our product will deliver with 2 batteries. When you finished your test but forget power it off, unit will shut down automaticly in 60 seconds without any operation. Thus this function will save energy..
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Epoxy Adhesive Optically Clear High Impact,Two Part Low Viscosity AA-Bond F113 5gm Pouch

  • Spec. Gravity 1.23 g/cc Mixed Viscosity 175 cP At 25°C, Thixotropic Index 1.0.
  • Mechanical Properties Hardness, Shore D 86, Pot Life 1.5 hours, Refractive Index 1.51.
  • Glass Transition Temp (Tg), ultimate 102°C.
  • cure time 24 hrs At 25°C, 1-2 hrs At 65°C.
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COLORKEY Lip Gloss Mirror Series 3 Packs Set, Shiny Hydrating Lip Lipstains with Essential oil, High Shine,Long-Lasting Liquid Lipstick Lip Tint

  • Lip Plumping Lip Gloss with Moisturizing Formula with High Refractive Index: This COLORKEY lip gloss enhances lip contour, drenching lips with high shine for hydrated, fuller-looking lips. This plumping lip gloss is packed with moisturizing formula with a high refractive index to plump up your lips with a glossy shine..
  • Quick Film Forming Technology: It adopts Special Quick Film Forming Technology, rapid formation of protective film, long-lasting color lock. A fuller-looking pout is just a few swipes away with this amazing glossy lip plumper..
  • Hydrating Lip Gloss with Macadamia Nut Oil and Geranium Flower Oil: Nourish the delicate lip skin, make your lips rosy and elastic. This moisturizing gloss leaves lips feeling hydrated and looking smoother and fuller..
  • Emulsion Water-oil Balance Technology: Refreshing texture, providing lasting moisturizing power, moisturizing and not sticky on the lips..
  • Discover COLORKEY Makeup: Colorkey, a makeup brand born in Asia, integrates the world's top suppliers and gathers experts in makeup, fashion, design, quality control and other fields to create safe and high-quality makeup products for hundreds of millions of young women worldwide. Colorkey hopes to make every maverick more cool and beautiful, illumining the world ....
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Bird Recording Observing Listening Device Telescope,5 Hours Long Recording,Listen and Observed To Upto 320ft Long Range Bionic Ear Electronic Listening Device(Upgrade paragraph)

  • ...m recording of sound, and the recording time is more than 5 hours. And supports sound export, equipped with a memory card, and a card reader, you can export the recorded sound to your computer or mobile phone..
  • ✅High-definition imaging: 8 times prism optical system, high refractive index BAK4 prism, imaging is not color cast or distortion, the transmittance of the lens and the light-gathering function make it visible in low light. The focus control knob allows high-definition imaging regardless of the distance..
  • ✅Simple operation: The ergonomically designed handle can be easily operated with 1 hand by pulling the on/off switch trigger. You can adjust the volume from low to high for better hearing..
  • ✅Purchase notice: The listening device will collect and amplify the sound around you, and inevitably will also amplify the noise around you. Please use the device in a slightly quiet place and do not have many electrical appliances around. have fun!.
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Taotuo Digital Night Vision Goggles Monocular Helmet for Adults HD Infrared Digital Night Vision Rifle Scope for Hunting and Surveillance

  • ...d at night and it can be used in a dark environment. And the pictures/videos in the night vision device can be transferred to the PC for backup via WIFI..
  • 【Night Vision Goggles Monocular】 Helmet mounted night vision monocular with multi-layer broadband cost lens design to ensure high light transmittance and high refractive index, making the image clearer and brighter in the field of view..
  • 【IR Auxiliary Illuminator】The laser illumination adopts 850NM/940NM optional, 940NM non-burst red laser, which has good concealment and non-exposure. The color of the imaging display can be switched. When used in a dark environment, it can be used for black and white imaging, or it can be switched to green imaging to meet different environments according to your requirements..
  • 【Large Capacity & Long Life Battery】This device use 1pcs 18650 lithium battery topower supply, removable battery design, aviod problem of the built-in battery device who damaged but couldn't change.Standard packing with a battery recharger（avoide some shipping problem battery not include indefault）.
  • 【Buy with Confidence】We will provide you with a high quality after-sales, 24 months After-sale service . If you have any problems, contact us anytime we will always be here to help....
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Berkley Trilene Fluorocarbon Professional Grade Filler Spool Fishing Line, Clear, 15 lb./200 yd.

  • Similar refractive index to water, so fish can't see it.
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