Gain Express Gem Gemological Gemelogy Refractometer with Built-in LED Light + RI Oil + 1.30-1.81 RI Range + 0.01 nD Scale Division
Gain Express Gem Gemological Gemelogy Refractometer with Built-in LED Light + RI Oil + 1.30-1.81 RI Range + 0.01 nD Scale Division
Gemstone Refractometer with built-in Light Source that makes it a carry-and-use-it-anywhere device. Comes with Automatic Temperature Compensation (ATC) that let itself adjust to the climate. With the aid of contact liquid (RI Fluid), that will create an optical contact between the glass and the gemstone, you can measure or test the Refractive Index of faceted stones, transparency or opacity, and its beauty, durability and scarcity. Features: HEAVY-DUTY and Built to last Provides three (3) 1.5V button type batteries Convenient & easy to carry With built-in Light Source that makes it a carry-and-use-it-anywhere device Comes with Automatic Temperature Compensation (ATC) that let itself adjust to the climate A bottle of Refractive Index Fluid is provided Approved by strict quality and safety standards Undoubtedly durable, very reliable and assures accurate testing results Specification: Measuring Range : 1.30 - 1.81 RI Minimum Graduation : (RI) 0.01 RI Illumination : Internal Light Source with momentary/power switch Dimension : 35mm x 63mm x 115mm Scale Division : 0.01 nD Weight : 0.4 kg Ranges of Application : Laboratory, Gemology Filter : Polarizing filter Power Source : 3 x AG13 1.5V button batteries Color : Black Set includes: 1 x Gem Refractometer 1 x FREE bottle of 1.800 Refractive Index Oil 3 x FREE 1.55V AG13 Batteries 1 x FREE Refractometer Index Reference List (For 77 common gemstones, i.e. Calcite, Jadeite, Quartz etc.) Polarizing Filter English User's Manual Standard Factory Packaging
- UPC: 701936209429
- ASIN: B00MNEBAQ4
- Brand: Gain Express
- Manufacturer: Gain Express Holdings Ltd
Chelsea Filter, Dichroscope, Jewelers Loupe, Gemological Refractometer - Gem Identification Tools, Bundle 6 Items
Chelsea Filter, Dichroscope, Jewelers Loupe, Gemological Refractometer - Gem Identification Tools, Bundle 6 Items
Chelsea Filter - now used to identify mostly any gemstone Dichroscope - invaluable for distinguishing certain stones from similar gems. 10x triplet jewellers loupe in black housing - one of the most important gemstone identification tools. Quality Gemological Refractometer with 10 grams of Certified R.I. 1.80 Liquid included. All Metal Construction. Identify almost all precious gemstones with this kit. Instructions on how to use 4 tools to identify gemstones. BONUS - GEMSTONES OF THE WORLD book by Walter Schumann. Essential Plus Gemological Tools Kit. This kit, if used properly, will allow you to identify almost all precious gemstones, using 4 essential gemological tools - Chelsea Filter, Dichroscope, Jewellers Loupe and Refractometer (10g of Certified 1.80 R.I. Liquid included), and to learn a lot about gemstones from hardcover Gemstones of the World book by Walter Schumann, highly rated by readers and experts.
- UPC: 717029486660
- ASIN: B001EBEEBU
- Brand: Ade Advanced Optics
- Manufacturer: Ade Advanced Optics®
Gemological Gemstone Gem Refractometer Built-in Light
Gemological Gemstone Gem Refractometer Built-in Light
The Gemological refractometer is considered by many to be the most important of all gem testing instruments. The primary use of the refractometer is to measure the angle at which light traveling through the stone is bent or refracted. This is called Refractive Index (R.I.). As Refractive Index is usually different for different gemstones, this provides an important clue for accurate gemstone identification. Gemological refractometer also can be used to determine whether or not a stone is single or double refracting. For doubly refracting stone, based on the difference between 2 readings you obtain from the refractometer, strength of the gemstone's double refraction (birefringence) may be computed and it offers an important gem identification aid, as it differs from gem to gem. Also refractometer is one of the few instruments capable to give you information for opaque stones as well as transparent stones. Quality of the instrument is important to enable you to perform consistent and reliable test for years to come. Our refractometer has all metal construction with built-in light (no flashlight or any other light source required) and polarizing filter, allowing you to perform all needed tests, it comes with vinyl soft case with belt loop for convenience while traveling and hard case for safe storage. Features: All metal quality construction Built-in LED light source with 3 x 1.5v batteries - included Accuracy: 0.01 Measurement range: 1.30 - 1.81 Polarizing Filter Weight: 0.9 lb Application: Gemology Hard and soft cases are included R.I. liquid is not included, please purchase certified R.I. oil from reputable sources. Please be aware that R.I. liquid is not included.
- ASIN: B000XACSOS
- Brand: ADE Advanced Optics
- Manufacturer: ADE Advanced Optics
One Legging it Around #Refractometer - Hashtag Men's Funny Soft Adult Tee T-Shirt, Black, XX-Large
One Legging it Around #Refractometer - Hashtag Men's Funny Soft Adult Tee T-Shirt, Black, XX-Large
Brought to you by people who care, this apparel item fits, feels, and looks great!
- ASIN: B07G69VTTS
- Brand: One Legging it Around
- Size: XX-Large
External Monochromatic Yellow Light Gem Refractometer, 1.80 RI Oil, Gemological. GIA Tools
External Monochromatic Yellow Light Gem Refractometer, 1.80 RI Oil, Gemological. GIA Tools
Measuring Range: 1.30 – 1.81 RI Minimum Graduation (RI): 0.01 RI Illumination: Internal illumination with momentary switch Size: 30mm x 70mm x 130mm Scale Division: 0.01 nD Weight: 0.4 kg Ranges of Application: Laboratory, Gemology Filter: Polarizing filter Made of durable heavy metal and scratch proof glass This item is commonly known as Gemstone Refractometer, is the primary and most powerful tool in identifying and authenticating polished precious and semiprecious gemstones and also observing the optical properties and the structure of gemstones. This model is just as good as the expensive models used in gemological institutes, it has a built-in light source and with the aid of the Contact liquid (RI Fluid), which creates an optical contact between the glass and the gemstone, you can measure or test the Refractive Index of faceted stones, its transparency or opacity, and its beauty, durability and scarcity. The refractive index (RI) of a gemstone provides the single most important piece of information to a gemologist seeking to identify an unknown stone. Due to its chemical composition and crystallization structure, each gem has a typical refractive index. 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. Through these parameters, you can determine whether the gem is a Single Refraction (Isotropic) or Double Refraction (Anisotropic or Birefringence).
- UPC: 704405061382
- ASIN: B0085S3952
- Brand: Ade Advanced Optics
- Manufacturer: Ade Advanced Optics
External Monochromatic Yellow Light Gem Refractometer, + 1.80 RI Oil, Gemological, GIA TOOLS
External Monochromatic Yellow Light Gem Refractometer, + 1.80 RI Oil, Gemological, GIA TOOLS
Measuring Range: 1.30 - 1.81 RI Minimum Graduation (RI): 0.01 RI Illumination: Internal illumination with momentary switch Size: 30mm x 70mm x 130mm Scale Division: 0.01 nD Weight: 0.4 kg Ranges of Application: Laboratory, Gemology Filter: Polarizing filter Made of durable heavy metal and scratch proof glass This item is commonly known as Gemstone Refractometer, is the primary and most powerful tool in identifying and authenticating polished precious and semiprecious gemstones and also observing the optical properties and the structure of gemstones. This model is just as good as the expensive models used in gemological institutes, it has a built-in light source and with the aid of the Contact liquid (RI Fluid), which creates an optical contact between the glass and the gemstone, you can measure or test the Refractive Index of faceted stones, its transparency or opacity, and its beauty, durability and scarcity. The refractive index (RI) of a gemstone provides the single most important piece of information to a gemologist seeking to identify an unknown stone. Due to its chemical composition and crystallization structure, each gem has a typical refractive index. 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. Through these parameters, you can determine whether the gem is a Single Refraction (Isotropic) or Double Refraction (Anisotropic or Birefringence).
- UPC: 881314887187
- ASIN: B00MOVGBXI
- Brand: MAGNUM_MEDIA
- Manufacturer: Magnum Media
Gemological Refractometer 1.30 to 1.81 Ri Range
Gemological Refractometer 1.30 to 1.81 Ri Range
Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones. This Gemological refractometer is a low cost, lightweight measuring instrument used by jewelers 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). 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. Features: Can identify singly & doubly gemstones quickly and accurately Uniquely designed, low battery consumption and portable Approved by strict quality and safety standards for long and trouble-free life Guaranteed high quality and accurate testing results Brand new and unused Specifications: Measuring Range: 1.30 - 1.81 RI Minimum Graduation Value: 0.01 RI Dimension: 30 x 70 x 130mm Weight: 400g Set Includes: 1 x Gem Refractometer 1 x Polarizing Filter 1 x Monochromatic Light Filter 1 x Mini Flashlight 1 x 1.5V AAA Battery 1 x Storage Box 1 x Quick Start Guide
- UPC: 701936208316
- ASIN: B00MNEA55Q
- Brand: Gain Express
- Manufacturer: Gain Express Holdings Ltd
Ade Advanced Optics BCBI9177 Beer Wort and Wine Refractometer, Dual Scale - Specific Gravity 1.000-1.120 and Brix 0-32%, Replaces Homebrew Hydrometer (Aluminum)
Ade Advanced Optics BCBI9177 Beer Wort and Wine Refractometer, Dual Scale - Specific Gravity 1.000-1.120 and Brix 0-32%, Replaces Homebrew Hydrometer (Aluminum)
This refractometer is for measuring the sugar content of beer and includes an automatic temperature compensation of 10 - 30 degree Celsius. This refractometer can replace your hydrometer for easier and more accurate measurements. Simply use the dropper to take a sample of wort and put it on the prism. Then hold the refractometer up to the light and look through the eyepiece. Due to the dual scale there is no need convert to specific gravity as the scale measures both Brix and SG. Comes in a carry case with a 2 year warranty. Please check out other refractometers available from Ade Advanced Optics, custom ranges available on request.
- UPC: 704405061597
- ASIN: B00AOCKWMU
- Brand: Ade Advanced Optics
- Manufacturer: Ade Advanced Optics
Ade Advanced Optics Digital/electronic Gem Refractometer 1.4~3.0 Ri Gemological Gemstone Diamond Jewel Testing Tool
Ade Advanced Optics Digital/electronic Gem Refractometer 1.4~3.0 Ri Gemological Gemstone Diamond Jewel Testing Tool
Each kind of gem has a typical refractive index due to its chemical composition and crystallization structure. Refractive index is one of most important optical parameter, through the parameters you can judge whether the gem is an anisotropic or isotropic stone. This digital gem refractometer is designed to measure the refractive index of gems with high accuracy ± 0.007 RI. With the full range from 1.400 to 3.000 RI, it can be used to test almost all kinds of gem. You don't need to apply RI fluid, just simply put your sample on the test platform and read the result on the LCD very quickly and conveniently. A gem refractometer is the primary and most powerful tool in gemstone identification. Therefore, it is widely used in jewelry stores, gem workshops, museums & collections, auctions, laboratories and etc SPECIFICATIONS: Measuring range: 1.400 ~ 3.000 RI Accuracy: ± 0.007 RI Working temperature: 10 ~ 28°C (50 ~ 82.4°F) Power source: 1 x 9V battery (included) Item size: approx. 105 x 60 x 35 mm Item weight: approx. 339g FEATURES: Wide measuring range: 1.400 ~ 3.000 RI High accuracy: ± 0.007 RI No refractometer oil needed Read results on LCD Easy and simple to use INCLUDE: 1 x Digital Gem Refractometer (main unit) 2 x Scale Sample 1 x Cleaning Cloth 1 x 9V battery. 1 x Instruction Manual Carrying Pouch Standard Factory Package
- UPC: 717029487612
- ASIN: B00HYJSNDG
- Brand: Ade Advanced Optics
- Manufacturer: Ade Advanced Optics
Car Coolants Adblue Antifreeze System Glycol Propylene Ethylene Battery Acid 1.10 to 1.40 kg/l Cleaning -40~0°C Coolant Windshield Fluid Refractometer Automatic Temperature Compensation ATC (°C)
Car Coolants Adblue Antifreeze System Glycol Propylene Ethylene Battery Acid 1.10 to 1.40 kg/l Cleaning -40~0°C Coolant Windshield Fluid Refractometer Automatic Temperature Compensation ATC (°C)
Description: This optical refractometer with six scales is designed to measure coolants and antifreezes based on ethylene glycol or propylene glycol, and measure battery fluid condition (density of the electrolyte and each scale division corresponds to 0.01g/cm3) COMMON FEATURES ON OUR REFRACTOMETERS: • Auto Temperature Compensation (ATC), increase accuracy and eliminates concerns on temperature • Easy to calibrate and use•Soft rubber eye piece for comfortable viewing • Cushioned with soft and comfortable non-slip rubberized grip, insulate test solution from body heat • Adjustable focus, clearly defined scale, w/ large easy-to-read measurements • Durable,built to last long • Approved by strict quality and safety standards • Accurate results guaranteed Specifications Measuring Range1Adblue: 30% ~ 35% Ethylene glycol & Propylene glycol : -50 to 0 ℃ Cleaning Fluids: -40 to 0 ℃ Battery Fluids: 1.10 to 1.40 kg/l SRF1 - Screenwash antifreeze based on Isopropyl alcohol (IPA ): -40 to 0 ℃ Resolution Adblue: 0.2% Ethylene and Propylene Glycol : 1℃ Cleaning Fluids : 5 ℃ Battery Fluids: 0.01 kg/l SRF1 - Screenwash antifreeze based on Isopropyl alcohol (IPA) : 5 ℃Reference Temperature: 20°CATC: 10-30°CShipping weight: 0.31 kg Shipping size: 21 x 9 x 6 (cm) Set Includes 1 x Traditional AdBlue Refractometer 2 x Pipettes 1 x Cleaning Cloth 1 x Mini screw driver 1 x Portable USB LED Light (Power Bank is not included in the set) 1 x Protective Carrying Case
- UPC: 713072682950
- ASIN: B01N4QYH14
- Brand: TekcoPlus
- Manufacturer: TekcoPlus Ltd