Salmue Gem Refractometer,Jewelry RHG181 1.30-1.81 Professional Gemstone ldentification Gem Refractometer for Gemologists' Travel/Portable Lab Suitcase.
Specially designed: This refractometer is designed to measure the refractive index of gemstones and solid materials. Many people think that gem refractometers are the most important of all gem test instruments. The primary use of a refractometer is to measure the angle at which light is bent or refracted through a stone..
High precision, compact and easy to carry: The refractometer is highly accurate and easy to operate. Lightweight and compact, it is easy to carry. It provides important gemstone recognition as it differs from gemstones to gemstones. The refractometer is also one of the few instruments that can provide you with information on opaque gems and transparent gems..
High quality: low battery consumption and long service life. The possible gems continue to be eliminated by values such as R.I., Color, Hardness and S.G. The transparent gemstone is tested and the surface is polished flat, which is very suitable for separating gemstones..
Quick identification: Quickly and accurately identify single and double gems. Helps identify diamonds, moissanite and colored gems, speeds up the identification of gems in the package, does not require RI liquids, and results in uniform and reliable results each time, with a clearly visible display for easy....
Salinity Refractometer for Seawater Aqaurium Fishkeeping Salinity Tester Meter Dual Scale-Specific Gravity Salinity Hydrometer 0-100PPT & 1.000-1.070
Dual Scale: this aquariums reqrium measures saltwater soultion and provides readings of 0-100PPT parts per thousand, Specific gravity 1.000 to....
Widely Use: Saline meter is ideal for aquarium marine fish-keeping, saltwater pool, agricultural, gardening and lab education purposes.
Accurate Refractometer: Saltwater tester can automatically compensate temperatue when the ambient temp changes, which allows the refractometer....
Simple to Use: salinity refractometer is easy to operate only 2-3 drops of sample solution after calibration, you can get the accurate reading through....
Durable & Portable: This saltwater meters are made of aluminum material, non-staining, anti-rusty and sturdy design, compact in size and lightweight,....
JOR Refractometer, Dual-Range Scale Device to Measure Salinity and Specific Gravity of Saltwater Aquarium and Reef Tank, Provides Accurate Reading, No Batteries Required, 1 Set per Piece
Dual-Range Scale Refractometer --- A healthy saltwater aquarium requires a salinity balance or the salt concentration in aquarium water. Refractometer by JOR helps maintain this fundamental parameter in your saltwater aquarium or reef tank, measuring both salt percentage and specific gravity. This measuring tool has a scale range of 0 to 100%, where 1% means one part per thousand (PPT) or 1000 parts per million (PPM) and with a corresponding specific gravity range of 1.000 to 1.070..
Provides Accurate Measurement Reading --- Forget guessing and estimating. This handy refractometer features automatic temperature compensation that gives precise, faster and easier readings..
Easy To Use --- Place 2 to 3 drops of aquarium water on the glass, then close the plastic cover. Look through the eyepiece as you hold it under a light source. Check the reading. The blue line indicates the exact salinity level..
High Quality And Economical --- This premium quality handheld refractometer has an aluminum alloy body, rubber grip, and adjustable focus. It doesn’t corrode, and since it is analog, it can also save you money because it doesn’t need batteries to operate, sparing you from buying replacements..
Complete Care Set --- This portable measuring device c....
SMARTSMITH Car Antifreeze Refractometer °F Dispay 4 in 1 Ethylene Glycol, Propylene Glycol in Antifreeze Liquids Freezing Point Temperature and Freezing Point Concentration, Automotive Battery Liquid
°F UINT,US BASED DESIGN:You may already got frustrated with those °C display or not American unit.Unlike most other companies,as a US designed brand,our refractometer designed showing °F,only one unit system.With the indication you may easily know the freezing point of either ethylene glycol or propylene glycol based cooling systems,check the window washer Fluid..
4 IN 1 DISPLAY&EASY TO USE:Ethylene Glycol: -60°F-32°F,Propylene Glycol: -60°F-32°F,Battery SG: 1.100-1.400sg,Urea:30%-35%,Windshield Washer Fluid: Ethanol + water :32°F to -40°F, propylene glycol + water (SRF1): 32°F to -40°F。With the 4 in 1 display,you can master full condition of your car,track.A must have item for your cars.Only takes about 2 drops of solutions to get your readings easily.Designed for simple use,No look up table,only 2 steps ,2 drops and even 1 glances to know your reading..
ATC(AUTOMATIC TEMPERATURE COMPENSATION):Handheld antifreeze refractometerr with Automatic Temperature Compensation(ATC),no more worry about the temperature change will influence the reading accuracy.the refractometer will account for changes in ambient temperature and automatically compensate accordingly to provides accurate and repeatable measurements..
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..
...ck of ultra-soft cotton Tees with long sleeves that your toddler and big boys can wear on a day to day basis, for any occasion.
as school uniform undershirts, as playwear, as pajamas, summer/ winter sleepwear or as regular daily shirts. SIZES 1/2 YEARS UP TO SIZE 18/20 YEARS.
PRIME TURKISH COTTON FOR EXTRA SOFTNESS- Brix Clothing aims to keep your children as comfy as possible throughout their day or sleepy time. The Turkish Cotton fabric of our tees feels silky soft, is perfect for kids with sensitive, irritation-prone skin and keeps your boy warm for hiking, winter wear layering, sports, camping & more..
REINFORCED STITCHING- Our sleeved shirts for boys feature a crewneck design that along with the armholes are bound with cotton rib and feature a double needle hem, a rare combo in plain shirts that enhances their durability- a perfect choice for active younglings..
MAKE IT YOUR OWN- Each 4-Pack of Brix Tees for Boys features 4 colors: White, Navy, Heather Grey, Chambray. Customize your kid’s T-Shirts with their favorite prints as our shirts work beautifully with Tie Dye, Heat Press Transfer and Graphic Print Designs!.
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...ck of ultra-soft cotton Tees with long sleeves that your toddler and big boys can wear on a day to day basis, for any occasion.
as school uniform undershirts, as playwear, as pajamas, summer/ winter sleepwear or as regular daily shirts. SIZES 1/2 YEARS UP TO SIZE 18/20 YEARS.
PRIME TURKISH COTTON FOR EXTRA SOFTNESS- Brix Clothing aims to keep your children as comfy as possible throughout their day or sleepy time. The Turkish Cotton fabric of our tees feels silky soft, is perfect for kids with sensitive, irritation-prone skin and keeps your boy warm for hiking, winter wear layering, sports, camping & more..
REINFORCED STITCHING- Our sleeved shirts for boys feature a crewneck design that along with the armholes are bound with cotton rib and feature a double needle hem, a rare combo in plain shirts that enhances their durability- a perfect choice for active younglings..
MAKE IT YOUR OWN- Each 4-Pack of Brix Tees for Boys features 4 colors: White, Navy, Heather Grey, Chambray. Customize your kid’s T-Shirts with their favorite prints as our shirts work beautifully with Tie Dye, Heat Press Transfer and Graphic Print Designs!.
THE BRIX GUARANTEE- Shop with zero risk as we offer Free Shipping, Free Return, Free Replacement, and a 100% Money Back Guarantee! Loo....
Robinair's Coolant and Battery Refractometer is designed for use in measuring the freeze point of propylene or ethylene glycol based cooling systems and for checking the strength of electrolyte solution batteries.
Precision instrument features high-quality optics with ultra smooth focusing to ensure reliable, accurate test results.
When a liquid (such as coolant or charging liquid) is placed on the tools prism, the light passing through it is bent - the more concentrated the liquid, the more the light will bend.
Scale range: -60 degrees Fahrenheit to +32 Fahrenheit.
Complete kit includes refractometer with rugged aluminum housing, eyedropper, screwdriver, vial of distilled water, cleaning cloth, foam lined rigid plastic case, and more.
