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
FidgetFidget Digital Gem Refractometer 1.4-2.0 RI Gemstone Gemology Gemological Diamond Tool
FidgetFidget Digital Gem Refractometer 1.4-2.0 RI Gemstone Gemology Gemological Diamond Tool
Description:- 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 accurately. With the full range from 1.400 to 2.000 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.Features:- High accuracy- No refractometer oil needed- Read results on LCD- Easy and simple to useSpecification:- Product Name: Gem Refractometer- Model: DGR-501- Color: Silver- Material: Alumuim Alloy- Power Supply: 1x 9V Layer-built Battery(Not including)- Working temperature: 5 ~ 30°C- Measuring Range: 1.400 ~ 2.000 RI- Item Size: approx. 105 x 60 x 35 mm
- ASIN: B07NDDLNZY
- Brand: FidgetFidget
- Manufacturer: FidgetFidget
Digital Gemstone Refractometer Gemstone Refractive Index Appraisal Appraisal Apparatus Jewelry Appraisal Apparatus
Digital Gemstone Refractometer Gemstone Refractive Index Appraisal Appraisal Apparatus Jewelry Appraisal Apparatus
Special attention should be paid to: The test sample must have a plane larger than 2MM in diameter. The tested surface of the test sample must be polished well, and the test value of the sample with poor polishing will be lower than the true value. Oil contamination and fingerprints on the surface seriously affect the accuracy of the determination. The test surface of the sample must be cleaned. The refractive index values of gemstone samples in different directions are different, so the gemstone measurement should be rotated to get the average value. Keep clean. Clean the table before testing. Cover the dust mask after testing. Do not let the dust test holes. Refractive index values of some gemstones: Ruby - --------- 1.740 - 1.790 Diamonds - - - - - - 2.3 - 2.55 Cubic Zirconia --------- 2.1-2.2 Seal - - - - - - 1.61 - 1.64 Crystal - --------- 1.54 - 1.56 Emerald - --------- 1.56-1.58 Olivine - --------- 1.65-1.69 Spinel - --------- 1.72-1.73 YAG - --------------- 1.82 - 1.84 Sapphire - ----------- 1.740 - 1.790
- UPC: 028753572728
- ASIN: B07M7JXTDS
- Brand: FCX
- Manufacturer: FCX
Gem Refractometer 1.30-1.81 RI Range Gemological Gemstone with LED Light Source Tools
Gem Refractometer 1.30-1.81 RI Range Gemological Gemstone with LED Light Source Tools
All the products are shipped from US warehouse(CA or NJ)! All the products are shipped from US warehouse(CA or NJ)! All the products are shipped from US warehouse(CA or NJ)! Specification: - Project Type: Refractometer - Material: ABS - Refractive index range: 1.30-1.81 RI - Color: as shown - Power: 1 * AA battery (not included) - Packing size: 22*6.5*11cm - Weight: about 690 grams Features: - Designed to measure the refractive index of gemstones and solid materials. - Lightweight and compact, easy to carry. - The refractometer is highly accurate and easy to operate. - Quickly and accurately identify single and double gems. - Strict quality and safety standard certification, long-term trouble-free use. Package list: - 1 * Refractometer - 1 * flashlight (excluding battery) - 1 * English manual
- UPC: 796862447342
- ASIN: B07TDLD1L8
- Brand: TUQI
- Manufacturer: TUQI
Presidium Digital GEM Refractometer - Measures RI Value for Diamond & Moissanite + Bonus $10 AMAZON GIFT CARD
Presidium Digital GEM Refractometer - Measures RI Value for Diamond & Moissanite + Bonus $10 AMAZON GIFT CARD
This digital refractometer has the ability to measure the range of RI value from 1.000 to ~3.000, covering the most common gemstones on the market including diamonds and moissanite. No RI liquid needed. The new software enables the user to further narrow the list of possible colored gemstones by entering known values such as color, hardness and specific gravity value. Identifies diamonds, moissanites and gemstones instantly. Narrow the selection of the possible gemstones through values such as via R.I., color, hardness and S.G. Contains 57 Gemstone properties. Tests on transparent gemstones, with flat polished surface. Ideal for separation of gemstones Speed up on the identification of gemstones in parcel. Consistent and reliable results every time. Power: 9V batteries or AC adapter (optional) Weight: 0.50 lbs One year factory warranty
- ASIN: B06X1CHRF5
- Brand: Presidium
- Manufacturer: Presidium
One Legging it Around #Refractometer - Hashtag Men's Funny Soft Adult Tee T-Shirt, Heather, Small
One Legging it Around #Refractometer - Hashtag Men's Funny Soft Adult Tee T-Shirt, Heather, Small
Brought to you by people who care, this apparel item fits, feels, and looks great!
- ASIN: B07G6FDSTV
- Brand: One Legging it Around
- Size: Small
Refractometers - Portable Hand Held Grape And Wine Alcohol Refractometers 0 25 Vol 40 Brix 22 Baume - Case Dual Calibration 0-90 Content Pipettes Reef Urine Jewel Jewelry Salinity Mini Salt Mead
Refractometers - Portable Hand Held Grape And Wine Alcohol Refractometers 0 25 Vol 40 Brix 22 Baume - Case Dual Calibration 0-90 Content Pipettes Reef Urine Jewel Jewelry Salinity Mini Salt Mead
Best Price for Refractometers - Portable Hand Held Grape And Wine Alcohol Refractometers 0 25 Vol 40 Brix 22 Baume - Case Dual Calibration 0-90 Content Pipettes Reef Urine Jewel Jewelry Salinity Mini Salt Mead - Good - Professional - Cheapest - Refractometer Reviews - Buy Online - High Quality - Cheap PriceSpecification:Unit Type: piece Package Weight: 0.23kg (0.51lb.) Package Size: 21cm x 9cm x 6cm (8.27in x 3.54in x 2.36in) Why should you choice Refractometers - Portable Hand Held Grape And Wine Alcohol Refractometers 0 25 Vol 40 Brix 22 Baume - Case Dual Calibration 0-90 Content Pipettes Reef Urine Jewel Jewelry Salinity Mini Salt Mead from other stores:Best PriceBest Feedback from CustomerBest Customer Service for RefractometerThe Benefits Of Refractometers - Portable Hand Held Grape And Wine Alcohol Refractometers 0 25 Vol 40 Brix 22 Baume - Case Dual Calibration 0-90 Content Pipettes Reef Urine Jewel Jewelry Salinity Mini Salt Mead To Users:It will work well for compact size and small homesRefractometer can last for a long time when usedThe product remains an amazing easy tool-free set upHigh quality material and so easy to use★★★100% SATISFACTION GUARANTEE- If there is any quality problem with the Refractometer, please contact us and we will refund your money or provide a new Refractometer, we want to ensure your are 100% satisfied!★★★Scroll to the top now and click Add to Cart to begin your favorite experience.
- UPC: 705534387367
- ASIN: B07T4XKNGH
- Brand: Unknown
- Manufacturer: Unknown
Gemological Gemstone Gem Refractometer Built-in Light, Aluminum Body with Optic Lens
Gemological Gemstone Gem Refractometer Built-in Light, Aluminum Body with Optic Lens
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; Accuracy: 0.01 Measurement range: 1.30 - 1.81 ; Weight: 0.9 lb Product Packaging: Gemstone Refractometer ， 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.★
- UPC: 028753993264
- ASIN: B07MJWGJ1J
- Brand: FCX
- Manufacturer: FCX
Sper Scientific 300053 Pocket Digital Refractometer, Brix: 0 ~ 95%
Sper Scientific 300053 Pocket Digital Refractometer, Brix: 0 ~ 95%
Pocket Digital Refractometer Brix 0 ~ 95% Laboratory accuracy in the field. Measure concentrations in brix, salinity and a wide variety of other parameters in the field with laboratory accuracy. As small, light and simple to use as optical refractometers, but with the precision of a digital readout. Reads samples as small as 1 ml. Sample temperature is initially displayed on the large LCD followed by the measurement results. The sophisticated microprocessor provides automatic calibration, automatic temperature compensation and automatic shutoff (after 3 minutes). A sturdy water resistant case protects the electronics from wet environments and makes for easy clean ups. All models feature one button calibration to distilled water and indicate when the battery should be replaced (8000 readings). Comes ready to use with distilled water, transfer-pipet, AAA battery, instructions and a carrying case. Dimensions: 4⅝" × 2⅜" × 1¼" (118 × 62 × 32 mm) Weight: 4.6 oz. (130 g).
- UPC: 816366024006
- ASIN: B001F061UC
- Brand: Sper Scientific
- Manufacturer: Sper Scientific
Sper Scientific 300035 Lab Digital Refractometer
Sper Scientific 300035 Lab Digital Refractometer
Lab Digital Refractometer Salinity Measure concentrations in brix, salinity, refractive index and clinical parameters with full scale accuracy of 0.1% using CCD scanner (= linear scanned array imaging) technology . Simple to use. All models calibrate to distilled water and require a sample of only 0.4 ml. Instantly displays temperature in addition to multiple scales with the unit of measure indicated on the large LCD. The sophisticated microprocessor provides automatic calibration, automatic temperature compensation, automatic shutoff (after 3 minutes), and visual min/max alarms. Low power consumption enables 5000 readings, before the LCD indicates that the battery should be replaced. The water resistant design protects the electronics from wet environments and makes for easy clean ups. Comes ready to use with a 9V battery, distilled water, a transfer-pipet, instructions and a protective case. Dimensions: 7" × 4" × 2½" (180 × 100 × 65 mm) Weight: 18 oz. (500 g).
- UPC: 816366023955
- ASIN: B001F07YVC
- Brand: Sper Scientific
- Manufacturer: Sper Scientific