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Digital Seawater...

$199.00
Drs. Foster & Smith Digital Seawater Refractometer 7-1/2 x 4 x 2-5/8
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Drs. Foster & Smith
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Digital refractometer for extremely fast and accurate results Optical device measures refractive index of marine aquarium water Displays result in PSU, salinity or specific gravity units in just seconds Measuring salinity of marine aquariums does not get any easier OR faster than this! Now professional measurement is as simple as dripping sample water onto the prism surface and pressing the READ key. In less than 2 seconds, this outstanding precision device will display the results in clear, digital numbers on the LCD screen. Dual-level LCD shows measurements in Practical Salinity Units (PSU), Salinity in Parts Per Thousands (PPT) or Specific Gravity S.G. (20/20). Automatically compensates for temperature for accurate research-grade analysis. Rugged, water-resistant unit boasts compact... Less
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National Jewelers Supplie
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Gem-A Refractometer from London, comes with case.
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Digital Seawater...

$199.00
Drs. Foster & Smith Digital Seawater Refractometer 7-1/2 x 4 x 2-5/8
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Drs. Foster & Smith
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Digital refractometer for extremely fast and accurate results Optical device measures refractive index of marine aquarium water Displays result in PSU, salinity or specific gravity units in just seconds Measuring salinity of marine aquariums does not get any easier OR faster than this! Now professional measurement is as simple as dripping sample water onto the prism surface and pressing the READ key. In less than 2 seconds, this outstanding precision device will display the results in clear, digital numbers on the LCD screen. Dual-level LCD shows measurements in Practical Salinity Units (PSU), Salinity in Parts Per Thousands (PPT) or Specific Gravity S.G. (20/20). Automatically compensates for temperature for accurate research-grade analysis. Rugged, water-resistant unit boasts compact... Less
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Extech RF18 Portable Brix...

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3 stores Extech RF18 Portable Brix Refractometer 0 to 18
Maintain proper lubricant cooling concentration to extend equipment life and prevent corrosion....
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Milwaukee MA887 Digital...

$129.95
AquaCave.com Milwaukee MA887 Digital Saltwater Refractometer with Case...
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AquaCave.com
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Milwaukee MA887 Digital Saltwater Refractometer with Case
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Vital Sine Refractometer

$99.99
Drs. Foster & Smith Vital Sine Refractometer
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Drs. Foster & Smith
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Largest and sharpest scale display we offer Calibration ring allows very easy calibrations Durable, all-metal refractometer housing Rubber hand grip eliminates transmission of hand heat to reduce errors True saltwater salinity refractometer boasts quick and accurate measurement. Features the largest, sharpest scale display for the most accurate salinity and specificgravity readings available (+/-1.0% salinityand +/-0.001 specific gravity). Unlike some models, the Vital Sine Refractometer is a true seawater salinity unit designed specifically for use with seawater and not just brine solutions. Easy, no-tool calibration with automatic compensation for shifts in ambient temperature (from 10 degree- 30 degreeC). Compact and portable for use anywhere. Metal housing andrubber hood protect unit... Less
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National Jewelers Supplie
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Refractometer and carrying case. Made in China
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$&+REFRACTOMETER

$54.99
Sears Marketplace $&+REFRACTOMETER
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Sears Marketplace
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$&+REFRACTOMETER
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Extech Rf30 Refractometer,...

$298.99
Zoro Extech Rf30 Refractometer, general Service,0-90% Brix
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Zoro
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Portable Refractometer, General Purpose 0 to 90% Brix, Features Three Ranges, Includes Carrying Case, Calibration Screwdriver and Instructions
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Milwaukee MA887 Digital...

$114.41
Big Al's Pets Milwaukee MA887 Digital Seawater Refractometer
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Big Al's Pets
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An optical instrument that employs the measurement of the refractive index to determine the salinity of natural and artificial seawater, ocean water, or brackish intermediates. Eliminates the uncertainty associated with mechanical refractometers.
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Otc 5025 Refractometer Kit,...

$75.51
Zoro Otc 5025 Refractometer Kit, Exhaust, 12in
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Zoro
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Refractometer Kit, Exhaust, Length (In.) 12, Pipe Size (In.) 5.75, Dia. Range (In.) 2.75, Used For Measuring The Diesel Exhaust Fluid (DEF) Concentration, When A Liquid Sample Is Placed On The Prism, The Light Passing Through It Is Bent.,The More Concentrated The Liquid, The More The Light Will Bend, For Use With Diesel Engines, Includes Refractometer, Dropper, Lens Wipe Cloth, Instructions, Quick Guide, Screwdriver and Case
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Marine Depot Aquarium Pro...

$64.99
MarineDepot.com Marine Depot Aquarium Pro Refractometer
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MarineDepot.com
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Designed specifically for aquarium use to measure the salinity of natural sea water (NSW). Most handheld saltwater refractometers available in the hobby are designed and calibrated for testing brine solution, i.e. sodium chloride, and are not calibrated for the refractive index of natural sea water.
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Refractometer Fisher Model...

$20.00
eBay Refractometer Fisher Model 13-946-21
+ $6.00 shipping
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eBay
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New Page 1 THANK YOU FOR LOOKING AT MY LISTING Refractometer Fisher Model 13-946-21 For sale is this slightly used refractometer from Fisher. The unit comes complete as shown on the listing. Shipping will be via USPS priority mail for quick delviery. END OF THE LINE, NO MAS
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Extech Battery Coolant/Glycol...

$99.99
Northern Tool Extech Battery Coolant/Glycol Refractometer - Model RF40
+ $5.99 shipping
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Northern Tool
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Automotive coolant refractometer measures the freezing point of coolants plus battery charge condition. Requires only a few drops of solution to use. Measures the freezing point of coolants Meas...
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Vital Sine Refractometer

$99.99
Drs. Foster & Smith Vital Sine Refractometer
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Drs. Foster & Smith
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Largest and sharpest scale display we offer Calibration ring allows very easy calibrations Durable, all-metal design Rubber hand grip eliminates transmission of hand heat to reduce errors Features the largest, sharpest scale displayfor the most accurate salinity and specificgravity readings available (+/-1.0% salinityand +/-0.001 specific gravity). Easy, no- toolcalibration, with automatic compensation for shifts in ambient temperature(from 10 degree- 30 degreeC). Compact and portable for use anywhere. Metal housing andrubber hood protect unit and prevent light from entering eyepiece. Features built- incalibration ring, no-roll stand, rubber grip to insulate against hand heat, storagecase, instructions, and more. Range: 0 - 100 parts per thousand salinity, 1.000-1.070 specific gravity... Less
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GEMPRO REFRACTOMETER -LOWER ...

$525.00
National Jewelers Supplie GEMPRO REFRACTOMETER -LOWER PRICE
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National Jewelers Supplie
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*ON BACK-ORDER UNTIL OCTOBER 1ST Features Easy viewing lens and a superior SCHOTT LASF hemicylinder for increased scratch resistance. Light source R.I. liquid 1.80 Monochromatic filter
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GEMOLOGICAL REFRACTOMETER,...

$155.55
Sears Marketplace GEMOLOGICAL REFRACTOMETER, GEMSTONE TESTING INSTRUMENT
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Sears Marketplace
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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... Less
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Auto- refractometer

$4,750.00
eBay Auto- refractometer
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Brand New / Auto- Refractometer FA-6000A specifications: Measuring range Spherecal:-20~ +20D(VD=12) 0.12D steps;Measuring range Cylinder:-8~ +8 0.12D steps;Measuring range Axis:0~180º 1º steps;Pupil Distance:45~85mm,1 mm steps;Vertex Distance:0mm,12mm, 13.75mm;Min. Pupil Size:Ø2.5mm;Chart: Auto fog;Display:5CRT Moniter;Print:Ther mal Printer;Power Supply: 100~120V/200- 240V,50/60Hz; Dimensions:484(L)× 282(W)×440(H)mm×mm ×mm;Weight:~20kg(4 4 lb) Availability: 3-4 weeks Payment expected within 3 day
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Reichert 137533lo...

$141.75
Zoro Reichert 137533lo Refractometer, Range 50 To 90 Brix
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Analog Refractometer, High Precision, Brix, Range 50 to 90 (Brix), Resolution 1.4201-1.5177, Includes 0.2
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Extech Rf16 Refractometer,...

$84.37
Zoro Extech Rf16 Refractometer, sucrose,0 To 10% Brix
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Zoro
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Portable Refractometer, Sucrose 0 to 10% Brix, Includes Carrying Case, Calibration Screwdriver and Instructions
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Def Refractometer

$100.50
Sears Marketplace Def Refractometer
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Sears Marketplace
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The 5025 refractometer is a portable, precision, optical instrument used for measuring the DEF concentration. When a liquid sample is placed on the prism, the light passing through it is bent. The more concentrated the liquid, the more the light will bend. It contains a reticle, or scale, that is enlarged through the eyepiece to measure this light; and the values on the scale have been established to evaluate the DEF condition. According to Adamson, simply place a small liquid DEF sample on the refractometer prism, look through the eyepiece, and read the scale, which has been specifically calibrated for DEF.
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Portable Refractometer 0-100...

$39.99
Drs. Foster & Smith Portable Refractometer 0-100 ppt salinity and 1.000-1.070 specific gravity
+ $5.99 shipping
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Drs. Foster & Smith
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Test concentration of salt in several aquariums with this portable, economical, and lightweight refractometer. Featuring the same accuracy as more expensive models, this optical device provides a direct reading of specific gravity and salinity in water. Requires no batteries and automatically compensates for temperature. Temperature Correction: Automatic from 50-86 degreeF (10-30 degreeC) Reading: Dual scale, 0-100 ppt salinity and 1.000-1.070 specific gravity Weight: 10 oz. Warranty: 6-month manufacturer's warranty. Pinpoint 53.0 mS Calibration/Refer ence Fluid sold separately. Please click on More Information for maintenance instructions. Why do you need a Portable Refractometer? Professional testing device at an affordable price - easiest and most accurate way to measure salinity and... Less
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Liquidynamics Diesel Exhaust...

$659.99
Northern Tool Liquidynamics Diesel Exhaust Fluid Refractometer, Model 195605
+ $9.49 shipping
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Northern Tool
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Liquidynamics Diesel Exhaust Fluid Refractometer is a simple means of checking DEF quality in the field. It has two electronic digital scales that provide readings of urea concentration as a percen...
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Milwaukee MA887 Digital...

$109.95
AquaCave.com Milwaukee MA887 Digital Refractometer...
+ $4.95 shipping
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AquaCave.com
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Milwaukee MA887 Digital Refractometer
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Extech RF20 0 Parts per...

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3 stores Extech RF20 0 Parts per Thousand to 100 Parts per Thousand Automatic Temperature Compensation Salinity Refractometer
Measures salinity from 0 to 100ppt Max resolution 1pp Automatic temperature compensation Only...
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Vee Gee 43002 Refractometer,...

$103.35
Zoro Vee Gee 43002 Refractometer, Analog, 0-32
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Zoro
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ANALOG REFRACTOMETER BRIX WITH AUTOMATIC TEMPERATURE COMPENSATION 0-32PCT .2 VEEGEE SCIENTIFIC
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Reichert 13754000...

$163.39
Zoro Reichert 13754000 Refractometer, range 0-30 Percent
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Zoro
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Analog Refractometer, Heavy Duty, Industrial Fluids, Range 0 to 30 Percent Brix, Automatic Temperature Compensation Y, Accuracy 0.1, 0.0001, Resolution 1.3330-1.3860, Function Food and Beverage, Chemical, Pharmaceutical, Industrial Cutting Fluids, Includes 0.5
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Vee Gee 43012 Refractometer,...

$102.40
Zoro Vee Gee 43012 Refractometer, Handheld, 0-20
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Zoro
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ANALOG REFRACTOMETER BRIX WITH AUTOMATIC TEMPERATURE COMPENSATION 0-20 .1 VEEGEE SCIENTIFIC
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Reichert 137531lo...

$179.75
Zoro Reichert 137531lo Refractometer, range 0 To 50 Brix
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Zoro
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Analog Refractometer, High Precision, Brix, Range 0 to 50 (Brix), Resolution 1.3330-1.4200, Includes 0.25
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D-D Seawater Refractometer ATC

$111.06
Sears Marketplace D-D Seawater Refractometer ATC
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Sears Marketplace
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D-D announces the release of a true 'Seawater' calibrated refractometer. What's different between our refractometer and others you might ask. Almost all, if not all, of the refractometers currently available to the aquarium hobby are designed for measuring saltwater (sodium chloride or brine solution) and not true 'seawater'. Although seawater is mostly sodium chloride it also contains other elements such as magnesium and calcium that change the refractive index slightly and will give a slightly different result. The most common symptom of this difference in refractive index can be seen when mixing up salt as per salt manufacturer's instructions and achieving a solution strength where it appears, through testing, that the levels of elements are lower than stated by the manufacturer. In... Less
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Deluxe Salinity Refractometer...

$49.95
AquaCave.com Deluxe Salinity Refractometer with ATC...
+ $4.95 shipping
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AquaCave.com
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hydrometers are not precise enough to measure salinity when very specific conditions must be maintained, such as when maintaining delicate coral and invertebrates or in some breeding situations...
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Refractometer Rf15 With...

$30.29
eBay Refractometer Rf15 With Automatic Temperature Compensation (0-32 Brix)
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NEW Refractometer RF15 with Automatic Temperature Compensation (0-32 Brix) $30.35 $40.95 The CBX032 analog refractometer provides accurate and repeatable measurements on an easy to read scale. This instrument is great for the testing the amount of sugars and dissolved solids in Fruits, Vegetables and Grasses. Also used in wine and Beer making to get just the right concentration of sugars. This refractometer also has a built-in automatic temperature Compensation system from 0 to 30 degrees C so
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Handheld Refractometer,...

$92.88
eBay Handheld Refractometer, Glycol Tester (1 Per Quantity)
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eBay
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The most accurate way of testing the concentration of acid and ethylene glycol or propylene glycol levels in antifreeze is with a refractometer. The refractometer uses just one drop of solution and allows the inspection of battery charge. Handheld refractometer comes complete with screwdriver eyedropper and padded case. Has an adjustable lens focus and a calibration adjustment screw. Reads in both Fahrenheit and Centigrade. Powered by eBay Turbo Lister The free listing tool. List your items fas
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Aqua Medic Salinity...

$94.95
AquaCave.com Aqua Medic Salinity Refractometer with ATC...
+ $4.95 shipping
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AquaCave.com
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Having an accurate measure of an aquariums salinity or specific gravity is essential to every marine enthusiast. Our Refractometer is the fastest, easiest, and most accurate way to know.
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