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4.0 of 5.0 with 4 Reviews
SALE PRICE: $76.00 1% OFF
Manufacturer: Thermco
Brand: THERMCO
Manufacturer: Thermco
Brand: THERMCO
"ACCUTHERM" VARIABLE IMMERSION THERMOMETERS - SPIRIT *-10/250C x 1.0C, 3" to 7" Immersion, Coated
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4.0 of 5.0 with 4 Reviews
SALE PRICE: $135.99
Manufacturer: Ade Advanced Optics
Brand: Ade Advanced Optics
Model: ExtGemRefra
Manufacturer: Ade Advanced Optics
Brand: Ade Advanced Optics
Model: ExtGemRefra
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).
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4.0 of 5.0 with 4 Reviews
SALE PRICE: $164.22 1% OFF
Manufacturer: LW Scientific
Brand: LW Scientific
Manufacturer: LW Scientific
Brand: LW Scientific
LW Scientific Refractometer - Specific Gravity in Urine / Total Protein in Serum Protein / Specific Gravity Model: Achieve accurate, quantitative measurements of specific gravity and protein determinations in bodily fluids with our hand-held refractometer. Simply read the numerical scales through the eyepiece. Rubber grip and optical focus system allow for easy viewing in any environment. Automatic temperature compensation allows for immediate results, even when sample temperatures vary.
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4.0 of 5.0 with 4 Reviews
SALE PRICE: $429.99 1% OFF
Manufacturer: Extech
Brand: Extech
Model: DO610
Manufacturer: Extech
Brand: Extech
Model: DO610
Extech DO610 ExStik II DO/pH Conductivity Kit. Extech DO610 Waterproof ExStik II DO/ pH/Conductivity Kit User-friendly kit economically measures 6 parameters supporting water, wastewater, groundwater, aquaculture and fisheries professionals: Dissolved Oxygen, Conductivity, TDS, Salinity, pH, and Temperature. Additional Features The included ExStik II DO600 meter displays Oxygen level as percent of Saturation from 0 to 200. 0 percent or Concentration from 0 to 20.00 ppm (mg/L). It features Adjustable Altitude Compensation (0 to 20,000 feet in 1,000-foot increments), Adjustable Salinity Compensation from 0 to 50 ppt and an analog bargraph for indicating trends. Built-in memory stores up to 25 data sets with DO and Temperature readings. Additional features include: self calibration on power up, data hold, auto power off, and low battery indicator. The DO600 is also waterproof to IP57.
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4.0 of 5.0 with 4 Reviews
SALE PRICE: $16.23
Manufacturer: American Educational
Brand: American Educational Products
Model: 7-804-1-A
Manufacturer: American Educational
Brand: American Educational Products
Model: 7-804-1-A
A useful demonstration of the density of liquids! The hydrometers are made from a borosilicate glass. Sealed inside are paper scales and a metal ballast.
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4.0 of 5.0 with 4 Reviews
SALE PRICE: $225.00 1% OFF
Manufacturer: Hygiena
Brand: Hygiena
Manufacturer: Hygiena
Brand: Hygiena
AquaSnap Total measures both free ATP in solution and microbial ATP. The device contains a detergent to release ATP that is bound to microbial or organic matter and inside microbes. AquaSnap is easy to use, economical, and gives real time results. The specifically designed dipper tip collects 100 µl of water ensuring consistent sample collection.
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4.0 of 5.0 with 4 Reviews
SALE PRICE: $70.30 1% OFF
Manufacturer: Bel-Art
Brand: Bel-Art Products
Model: B61821-0800
Manufacturer: Bel-Art
Brand: Bel-Art Products
Model: B61821-0800
Made of lead free ballast and glass, these combined form thermo-hydrometers are 381mm (15") long and offer the additional convenience of an enclosed thermometer with a temperature scale of 0/150 degrees F and mercury-free blue spirit organic liquid fill. They are individually serialized and conform to the accuracy requirements for ASTM thermo-hydrometers. Specific gravity hydrometers are the most widely used hydrometer in industries such as food and beverage, chemistry, pharmacology, transportation, refrigeration and more. Choose from a wide range of models measuring specific gravity/relative density (g/cm3) of a variety of liquids in various ranges from 0.600 to 2.000. Temperature standardization is 60 degrees F (15 degrees C). DURAC Safety Combined Form Thermo-Hydrometers are hand inspected by our U.S. quality team in our exclusive triple accredited/registered ISO/IEC 17025:2005 and A2LA Accredited Calibration Laboratory; internationally recognized and accepted by the signatory economies of the ILAC /MRA and located in our ISO 14001:2004 Environmental Management System registered facility. They are packaged with a multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy indicating accuracy traceable to NIST. Note: Combined form hydrometers should be stored in a clean, dry, safe place, and should not be subjected to extreme temperatures. Enclosed thermometers should be used as a general reference only. For temperature critical applications, a calibrated standard thermometer is recommended.
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3.9 of 5.0 with 4 Reviews
SALE PRICE: $43.51 1% OFF
Manufacturer: Industrial Grade
Brand: Industrial Grade
Manufacturer: Industrial Grade
Brand: Industrial Grade
Bimetal Thermometer, Back Connection, Stem Length 6 In, Temp Range 0 to 250 F, Dial Size 2 In, Stem Dia 1/4 In, Connection Size 1/4 In NPT, Coil Finish Silicone for Superior Time Response and Vibration Dampening, Full Scale Accuracy 1 %, Hermetically Sealed to Prevent Icing/Fogging Inside Case, Stainless Steel Case Material, Stainless Steel Stem Material, Calibration External Adjustment, Glass Face
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3.9 of 5.0 with 4 Reviews
SALE PRICE: $38.90 1% OFF
Manufacturer: Marineland Aquarium Products
Brand: MarineLand
Manufacturer: Marineland Aquarium Products
Brand: MarineLand
This hydrometer from Marineland Aquarium is used to determine the specific gravity of a liquid and is perfect for use in lobster tanks.Model #: CA1501 Measures Gravity Of Liquids Great For Lobster Tanks 630661
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3.9 of 5.0 with 4 Reviews
SALE PRICE: $64.00 1% OFF
Manufacturer: Thermco
Brand: THERMCO
Manufacturer: Thermco
Brand: THERMCO
Proof Scale measures the percent Alcohol by Volume Multiplied by 2. Internal Revenue Specification Proof Scales. Suitable for Certification.
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