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Aquarium Hydrometers - 32 - Huge Savings! Save up to 17%


Huge Savings! Up to 17% off on Aquarium Hydrometers at City Pet Books. Top brands include Gain Express, Sinotech, Marine Color, & Generic. Hurry! Limited time offers. Offers valid only while supplies last.



Clinical Refractometer with ATC, Tri Scale Serum Protein/Urine Specific Gravity/Refractive Index, for Veterinary Dog Cat Pet
Clinical Refractometer with ATC, Tri Scale Serum Protein/Urine Specific Gravity/Refractive Index, for Veterinary Dog Cat Pet
By Gain Express
In Stock
$28.68
$23.90
You Save: 17%

mpn: REC-200ATC, ean: 0600316548588,

4.7 out of 5 stars with 9 reviews
Clinical Refractometer measure and test urine specific gravity, plasma or serum protein, and refractive index for Veterinary tool and pet owner. Also, it's an economic & ideal tool for athletes, wrestlers, and other sports competitors to pretest hydr...


Sinotech Hand Held New Design Salinity 0-10% Aquarium Refractometer Built-in Calibration Knob Rhsn-10atc
Sinotech Hand Held New Design Salinity 0-10% Aquarium Refractometer Built-in Calibration Knob Rhsn-10atc
By Sinotech
In Stock
$30.50

mpn: RHSN-10ATC, ean: 0799804051096,

RHSN-10ATC is an upgraded version of RHS-10ATC with an additional features of BUILT-IN CALIBRATION KNOB, has much LIGHTER WEIGHT, and LONGER. Salinity Refractometer is designed for testing the concentration of salt water and brine and used for qualit...


Sinotech Hand Held New Design Food Salinity 0-28% Refractometer with in Calibration Knob Rhsn-28atc
Sinotech Hand Held New Design Food Salinity 0-28% Refractometer with in Calibration Knob Rhsn-28atc
By Sinotech
In Stock
$30.50

mpn: RHSN-28ATC, ean: 0799804051102,

RHSN-28ATC is an upgraded version of RHS-28ATC with an additional features of BUILT-IN CALIBRATION KNOB, has much LIGHTER WEIGHT, and LONGER These models aredeveloped for the measuring of salt in brine and prepared food solution. The RHSN-28ATC has ...


Sinotech Hand Held New Design Antifreeze Battery Refractometer Rhan-100atc
Sinotech Hand Held New Design Antifreeze Battery Refractometer Rhan-100atc
By Sinotech
In Stock
$30.50

mpn: RHAN-100ATC, ean: 0799804051140,

RHAN-100ATC Is An Upgraded Version Of RHA-100ATC With An Additional Features Of BUILT-IN CALIBRATION KNOB, Has Much LIGHTER WEIGHT, And LONGER RHAN-100ATC Models are Equipped With °F Unit System. With the Indication of the Percentage WeMay Know the ...


Sinotech Hand Held New Design Antifreeze Glycol Battery Refractometer with Calibration Knob Rhan-600atc
Sinotech Hand Held New Design Antifreeze Glycol Battery Refractometer with Calibration Knob Rhan-600atc
By Sinotech
In Stock
$30.50

mpn: RHAN-600ATC, ean: 0799804051157,

If customers prefer to have a Model which Has (C) and (F). The Model RHAN-600ATC is good choice as the temperature in C and F were both lised in its Scale! It Has three Scales for Glycol analysis / Testing and Battery liquids Testing: Measuring Rang...


Sinotech Hand Held New Design Antifreeze Refractometer Rhan-403atc
Sinotech Hand Held New Design Antifreeze Refractometer Rhan-403atc
By Sinotech
In Stock
$31.00

mpn: Sin-3084, ean: 0799804051188,

The Model RHAN-403ATC Has Four Scales for Glycol Analysis / Testing, Battery Liquids and Windshield Cleaning Fluid Testing: The Glycol Analysis / Testing Scale Offers a Convenient, Fast and Accurate Way for Testing / Analyzing the Glycol Concentrati...


Sinotech Hand Held New Design Brix 0-10% Brix Refractometer with Calibration Knob Rhbn-10atc
Sinotech Hand Held New Design Brix 0-10% Brix Refractometer with Calibration Knob Rhbn-10atc
By Sinotech
In Stock
$31.00

mpn: RHBN-10ATC, ean: 0799804051171,

RHBN-10ATC Is An Upgraded Version Of RHB-10ATC With An Additional Features Of BUILT-IN CALIBRATION KNOB, Has Much LIGHTER WEIGHT, And LONGER. It Is Specially Designed To Work With Sugar-Related Liquids Such as Low Sugar Fruits And Vegetables Juices, ...


Sinotech Hand Held Lighted Brix 58-92% Honey Refractometer Zgrb-92atc
Sinotech Hand Held Lighted Brix 58-92% Honey Refractometer Zgrb-92atc
By Sinotech
In Stock
$38.90

mpn: ZGRB-90ATC, ean: 0799804051201,

ZGR Series Has its Own light Source. With the built-in light Source, it Makes more convenient to use when in a Dark or Dim room or when doing wide-field work. And it Also Can use the outside light Source to test. It is convenient to replace the batte...


Sinotech Hand Held Lighted Antifreeze Coolant Refractometer Zgra-300atc
Sinotech Hand Held Lighted Antifreeze Coolant Refractometer Zgra-300atc
By Sinotech
In Stock
$37.00

mpn: Sin-3074, ean: 0799804051232,

ZGR Series Has its Own light Source. With the built-in light Source, it Makes more convenient to use when in a Dark or Dim room or when doing wide-field work.And it Also Can use the outside light Source to testThe Models Have only 1 Unit system: °F....


Sinotech Hand Held Lighted Salinity 0-10%(0-100ppt) Aquarium Refractometer Zgrs-10atc
Sinotech Hand Held Lighted Salinity 0-10%(0-100ppt) Aquarium Refractometer Zgrs-10atc
By Sinotech
In Stock
$37.00

mpn: ZGRS-10ATC, ean: 0799804051218,

ZGR Series Has its Own light Source. With the built-in light Source, it Makes more convenient to use when in a Dark or Dim room or when doing wide-field work.And it Also Can use the outside light Source to testSalinity Refractometer is Designed for T...


Sinotech Hand Held Lighted Clinical Refractometer Zgrc-300atc Black Rubber
Sinotech Hand Held Lighted Clinical Refractometer Zgrc-300atc Black Rubber
By Sinotech
In Stock
$41.00

mpn: Sin-3077, ean: 0799804052567,

Specification: Measuring Range: 2-14g/dl, 1.000-1.060RI Dog,1.000-1.060RI Cat Minimum Division: 0.2g/dl, 0.001RI, 0.001RI Accuracy:±0.2g/dl, ±0.001RI, ±0.001RI ATC CompensationRange: 10°C~30°C (50°F~86°F) With The Built-in Light Sou...


Sinotech Hand Held Brix 0-18% Cutting Liquid Refractometer Rhb-18atc
Sinotech Hand Held Brix 0-18% Cutting Liquid Refractometer Rhb-18atc
By Sinotech
In Stock
$25.00

mpn: RHB-18ATC, ean: 0799804054622,

Product Description This Refractometer Provides Higher Measurement That Reaches Up To 0-18% Brix (Measuring Range), 0.20 Brix Divisions ,Accuracy Of ±0.15% And ATC Of 10°C~30°C or 50°F~86°F. Specially Designed For People Involved With Food Harve...


Sinotech 2 in 1 Brix & Salinity 0-28%salinity 0-32%brix Refractometer Rhs-28brixatc
Sinotech 2 in 1 Brix & Salinity 0-28%salinity 0-32%brix Refractometer Rhs-28brixatc
By Sinotech
In Stock
$22.99

mpn: RHS-28BrixATC, ean: 0799804054646,

This model has dual- scales salinity and brix. It is developed for measuring salt in prepared food solution and brine. it also working with sugar related liquids such as fruit juice, soft-drinks, wine, and honey to help monitor and control sugar conc...


Sinotech Hand Held Fruit Suger Refractometer Brix 28-62% Rhb-62atc
Sinotech Hand Held Fruit Suger Refractometer Brix 28-62% Rhb-62atc
By Sinotech
In Stock
$22.99

mpn: RHB-62ATC, ean: 0799804054684,

The Models With A High Resolution Brix Scale Are Ideal For Concentrated Fruit Juice And Canned Foods That Uses Sugar Infusion. Measuring Range: 28-62%Brix Minimum Division: 0.2%Brix Automatic Temperature Compensation Range:10°C-30°C Determines th...


Sinotech Hand Held Fruit Suger 45-82% Refractometer Brixrhb-82atc
Sinotech Hand Held Fruit Suger 45-82% Refractometer Brixrhb-82atc
By Sinotech
In Stock
$21.80

mpn: RHB-82ATC, ean: 0799804054691,

Developed For Measuring The Sugar Content Of Concentrated Fruit Juice, Condensed Milk, Liquefied Sugar And Jam. It Provides Critical Information To Ensure Product Quality Whether The Users Are Checking & Verifying Product Quality After Harvesting or ...


Sinotech Hand Held Specific Gravity: 1.015-1.030sg Salinity Refractometer Rhs-4atc
Sinotech Hand Held Specific Gravity: 1.015-1.030sg Salinity Refractometer Rhs-4atc
By Sinotech
In Stock
$24.18
$22.99
You Save: 5%

mpn: RHS-4ATC, ean: 0799804054776,

4.4 out of 5 stars with 10 reviews
Salinity Refractometer is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentra...


Sinotech Hand Held Food Salinity 0-28% Refractometer Rhs-28atc
Sinotech Hand Held Food Salinity 0-28% Refractometer Rhs-28atc
By Sinotech
In Stock
$21.50

mpn: RHS-28ATC, ean: 0799804054783,

These Models are Developed for Measuring Salt in Brine and Prepared Food Solution. It's Fully Equipped With ATC That Automatically Adjust Itself to Correct Temperature Discrepancies During Use. Capable of Measuring With High Accuracy and Provides Pre...


Reef Hd Salinity Refractometer for Aquarium, Hydrometer
Reef Hd Salinity Refractometer for Aquarium, Hydrometer
By Marine Color
In Stock
$24.99

mpn: MC19790316, ean: 0701807980549,

* Ranges: 0-100 ppt of Salinity and 1.000 to 1.070 Specific Gravity * Accuracy: +/- 1 ppt / 0.001 Specific Gravity * Divisions: 1 ppt / 0.001 Specific Gravity * Automatic Temperature Compensation (ATC) * Sturdy design made of durable Aluminum, not ...


Sinotech Hand Held Brix45-82% Fruit Sugar Refractometer P-rhb-82atc
Sinotech Hand Held Brix45-82% Fruit Sugar Refractometer P-rhb-82atc
By Sinotech
In Stock
$14.99

mpn: Sin-3007, ean: 0799804055018,

Developed For Measuring The Sugar Content Of Concentrated Fruit Juice, Condensed Milk, Liquefied Sugar And Jam. It Provides Critical Information To Ensure Product Quality Whether The Users Are Checking & Verifying Product Quality After Harvesting or ...


Aluminum Salinity Salt Refractometer for Aquarium Fish Tank 0%-10% Hydrometer
Aluminum Salinity Salt Refractometer for Aquarium Fish Tank 0%-10% Hydrometer
By Generic
In Stock
$22.79

ean: 0793002152388,

Aluminum Salinity Salt Refractometer for Aquarium Fish Tank 0%-10% Hydrometer Specifications: Size(approx): 195 x 40mm Measure Range: 0-100%(0-10%) Accuracy: 0.001sg(1%) Salinity Proportion: 1.000-1.070sg Package Includes: 1 x Refractometer, 1 x Pi...



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