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..
iTavah Brix Refractometer with ATC, Hydrometer for Wine Making and Beer Beer Brewing, Dual Scale, Brix 0-32%, Specific Gravity 1.000-1.130
DUAL SCALE:Rapidly and precisely display the Brix (0-32%) and Specific Gravity (1.000-1.130) at the same time, no need to switch unit for readings each time!.
ACCURATE READINGS WITH ATC: Hand Held Brewing Refractometerr with Automatic Temperature Compensation(ATC), the brix refractometer will account for changes in ambient temperature and automatically compensate accordingly to Provides accurate and repeatable measurements on easy to read scale..
EASY TO USE: Just take a drop or 2 of your brew on the prism and hold the refractometer to the light, then look through the eyepiece to get the reading. No lookup table needed and no waste!.
UNIVERSAL FIT: Ideal for Home Brew, Wine making, Agricultural, Gardening & Educational Purposes..
PORTABLE COMPACT PACKAGE: The refractometer comes with dropper, screwdriver, user manual and cleaning cloth, all included in a hard compact case, the item dimensions is 8"x3"x2.
Digital PH Meter, PH Meter 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium Water PH Tester Design with ATC
✔HIGH ACCURACY: Ensure Your Pool, General Hydroponics Ph or Even Drinking Water Has a Perfect Ph Balance and Safe for Use with Tester Precision Ph Accuracy. Tester Has a Sensitive Electrode Sensor to Read Accurate Ph Levels. The Included Detailed Manual Will Show You How to Get the Best Accurate and Stable Reading.
✔AUTO CALIBRATION: The Ph Meter Has an Auto Temprature Compensation Feature That Adjusts to Water Temperatures and Water Quality to Give Ph Readings Almost Instantly. As Well, You Can Calibrate the Tester with One Touch Button Using Buffer Powder..
✔AUTOMATIC TEMPERATURE COMPENSATION: No more need to take care about the temperature of testing liquid, as ph meter has built in (ATC) automatic temperature compensation, so that it can accurately determine pH value of the sample at any temperature in a range of 0°C – 80°C (32°F – 176°F).
✔WIDE USE: Ideal for Household or Laboratory Use, Suitable for Testing Ph Balance of Drinking Water, Pool, Aquarium, Ro System, Spa, or Hydroponics.
Appropriate for Wide Range of Applications.
✔MAKE YOU SATISFIED WITH THE PRODUCTS: Come with 1x PH meter, 1x user manual, 2x 1.5V LR44 button cells(build-in), 3x PH Buffer Powders.
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..
Brix Refractometer for Homebrew Beer Wort, Hobein Dual Scale Automatic Temperature Compensation 0-32% Specific Gravity Hydrometer with ATC
❤DUAL SCALE:Rapidly and precisely display the Brix (0-32%) and Specific Gravity (1.000-1.130) at the same time, no need to switch unit for readings each time!.
❤ACCURATE READINGS WITH ATC: Hand Held Brewing Refractometerr with Automatic Temperature Compensation(ATC), the brix refractometer will account for changes in ambient temperature and automatically compensate accordingly to Provides accurate and repeatable measurements on easy to read scale..
❤EASY TO USE: Just take a drop or 2 of your brew on the prism and hold the refractometer to the light, then look through the eyepiece to get the reading. No lookup table needed and no waste! More accurate to measure sugars in verities of melon, fruits or juice..
❤WIDE USE: Ideal for Home Brew, Wine making, Agricultural, Gardening & Educational Purposes.Best choice for homebrew, wine making, and other purposes..
❤PORTABLE DURABLE & WARRENTY : Made with non-staining, non-corrosive and non-reactive aluminum material, light-weighted and portable, safe and durable. If you have any issue with your brix refractometer,please do not hesitate to contact us - your satisfaction is paramount!.
TDS/pH/Temperature 3-in-1 Digital pH Meter with ATC 0.01 High Precision Water Quality Tester pH Measurement Range with 0-14 pH Meter for Household Drinking Pool and Aquarium
✔️ 3-in-1 pH Meter - pH meter has a three-in-one function, which can measure PH, TDS and temperature with high precision..
✔️ Accurate Testing - Using a high sensitivity glass probe, the pH tester with a measurement range of 0-14.0 can quickly read accurate pH values....
✔️ Auto Calibration - Digital pH tester factory calibrated, but recalibration is needed in case of long period of inactivity or after a frequent....
✔️ Widely Used - Ideal for home or laboratory uses. Digital pH meter can be used to test drinking water, swimming pools, PH balance in aquarium,....
✔️ Mini Size - Lightweight and portable size allows you to take it around easily in your pocket and do your measuring anywhere. pH meter can help....
Digital PH Meter Tester Kit, High Accuracy Pocket Size PH Meter for Water, Digital ph Test Pen with 0-14 PH Measurement Range for Household Drinking Water, Aquarium, Swimming Pools
...d Manual Will Show You How to Get the Best Accurate and Stable Reading, Ensure Your Pool, or Even Drinking Water Has a Perfect Ph Balance..
【Wide Use】PH reader for water with High quality glass PH probe, The digital ph meter kit suitable for multiple occasions, such as Testing Ph Balance of Drinking Water, Pool, Aquarium, Ro System, Spa, Hydroponics, pond in a garden, urine, soap mixtures, food, wine, beer or any other liquids. This ph tester digital is the ideal test kit for home and laboratory uses..
【Fast After-Sales Response】Come with 1x Digital PH meter, 1x user manual, 2x 1. 5V LR44 button cells(build-in), 3x PH Buffer Powders.
If there are any quality problems of our products, Please do not hesitate to contact us, We will solve it for you within 24 hours..
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.
Water Quality Tester, Accurate and Reliable, HoneForest TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc.
✔ACCURATE AND RELIABLE: To achieve high accuracy, equipped with premium quality titanium alloy probe, and reliable Automatic Temperature Compensation (ATC) ensures reading always be accurate at various temperatures..
✔MULTIFUNCTIONAL AND UPGRADED: Professional TDS, EC and Temperature Pen 3 in 1. Upgraded with big backlit LCD for easier reading, and auto-lock function for easier use..
✔EASY AND INSTANTLY: Just turn TDS meter on and stir water gently, then stabilized readings will be auto-locked on LCD in seconds, and the tds ppm meter will shut off automatically if without operation over 2 minutes..
✔MULTIPURPOSE TDS TESTER: Test the purity of drinking water to ensure it's healthy, monitor if Reverse Osmosis (RO)/DI System works properly, whether filter need replaced, maintenance aquarium, hydroponics(test nutrients), pool and spa, etc..
✔3 YEARS WARRANTY. And we offer 90 days Money Back Guarantee if not totally happy with the digital TDS water tester meter..
