Finding the best hydrometer calibration fluid suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Best hydrometer calibration fluid
1. Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
Feature
Measure salt water or salinity of water, ideal for aquariums and marine monitoring.Measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand.
Features automatic temperature compensation.
Comes with hard case, dropper, screwdriver, user manual and cleaning cloth.
The main part is made of chromium, it's very durable.
Description
Refractometer for seawater and marine fishkeeping aquarium 0-100 pptDetails :
This optical refractometer (salinity meter) has scales in the range of 0 - 100 ppt(0 - 10 %). The reading resolution is 1 ppt. It is designed for the measurement of seawater (marine aquaria) or very low concentrated salt solutions.
The second scale is for reading of the salt solution density in range 1.000 to 1.070 g/cm3 (resolution 0.001 g/cm3).
The usual salinity of the selected aqueous solutions
1.Fresh water ---< 0.5 ppt
2.Brackish water---0.5 to 30 ppt
3.Saline water (Seawater)---30 to 50 ppt
4.Brine---> 50 ppt
(Salinity 36 ppt means, that there are 36 grams of salt in 1 liter aqueous solution.)
Measurement:
The liquid measurement is very easy. Place a few drops of the liquid on the optical part of the refractometer, cover the prism (the liquid will spread more easily over the prism), look throught the eyepiece against the light (focus, if necessary)
and you will be able to read the result value on the scale.
General technical parameters
reference temperature 20 Celsius
ATC - automatic temperature compensation (compensation range 0 ~ 30 Celsius)
focus possibility
length ~ 195 mm
quality technical design
Content and equipment
a firm plastic case
a refractometer
a cleaning cloth
3 suction tube
a screw driver
a operating instructions
2. Aqua Craft Standard Seawater 35 ppt Refractometer Calibration Solution - 60 ml
3. Brix Refractometer with ATC, Brix 0-32, Hydrometer in Wine Making, Homebrew Kit (0~32%)
Feature
It is designed for the brix measurement of ferment for brandy, beer worth, sugar solutions, fruit juice or milk beverages.Ideal for Home Brew, Wine making, Agricultural, Gardening & Educational Purposes.
Brix Range 0-32%, the reading resolution is 0.2 %.Brix Accuracy: +/-0.2%
Automatic Temperature Compensation makes it even easier to get fast results.
Easy operation and save big: just need 2-3 drops of solution, you can get accurate readings.
4. Brightwell Aquatics Refractometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60
Feature
Accurate reference for the calibration of seawater refractometers, hydrometers & other density measuring equipment35 ppt Salinity
1. 0264 Specific Gravity
1. 3394 Refractive Index
53 uS/cm at 25 deg c
5. Brightwell Aquatics Refractometer & Hydrometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment (RES250)
Feature
Accurate reference for the calibration of seawater refractometers, hydrometers & other density measuring equipment35 ppt Salinity
1. 0264 Specific Gravity
1. 3394 Refractive Index
53 uS/cm at 25 deg c
Included Components: Refractometer And Hydrometer Calibration Standard
6. AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Hydrometer Specific Gravity Salinity Meter Kit
Feature
Salinity RefractometerMeasure Salt Water or Salinity of Water,Monitor and Control the Concentration of Salt Water and Brine,Ideal for Aquariums and Marine Applications.Measures on 2 ScalesSpecific Gravity (D 20/20) and parts per thousand and replaces your poor quality and difficult to read hydrometer.
Density Measurement Range1.0-1.070, Minimum Scale is 0.001.
Concentration Measurement Range0-100, Minimum Scale is 1.
ATCAutomatic Temperature Compensation, 0-10C.
7. Pinpoint Salinity Meter Kit
Feature
Displays a digital readoutFully temperature compensated
Conversion chart included
Comes complete with meter, probe and calibration fluid
8. Pinpoint Salinity Fluid for Refractometers and Salinity Monitors
Feature
Standardized fluid for calibrating Salinity Meters/Monitors as well as RefractometersCalibrates to sg 1.026 or 35ppt
Conversion chart included
9. AccuBrate Refractometer Salinity Calibration Fluid 60 ml Solution to Accurately Calibrate Refractometer for Testing Natural Saltwater or Synthetic Sea Water - Made in the USA (60 ml)
Feature
REMARKABLE PERFORMANCE! Accubrate calibration solution is specifically formulated to calibrate refractometers to accurately measure the salinity of saltwater, reef aquariums as well as natural seawater.ACCURATE RESULTS! Our calibration solution is formulated from a high purity blend of salts to produce accurate readings every time. Refractometers must be calibrated often to obtain accurate readings. Note: RO/DI water will not calibrate your refractometer correctly. Always use Accubrate to ensure correct salinity readings - your aquatic friends will love you.
EASY TO USE: Our specially designed bottle has a built-in dropper tip which eliminates the need for a pipette. Simply squeeze a few drops of Accubrate directly from the bottle onto the refractometers prism slide and you are ready to calibrate your instrument. (Drops come out at a very controllable rate.)
LONG-LASTING: You need just 2 to 3 drops of our calibration solution to calibrate a refractometer. Using a few drops means our 60 ml bottle should last a very long time. For best results calibrate refractometer often to ensure accurate readings.
10. RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Tester 0-100ppt & 1.000-1.070, Saltwater Testing Kit Hydrometer with ATC Function
Feature
Measures on 2 Scales: Aquariums refractometer features Specific Gravity (D 20/20) 1.000-1.070sg and parts per thousand 0-100PPT (1=1ppt=1000ppm)Seawater refractometer measures saltwater or salinity of water, ideal for aquarium, marine monitoring, fish-keeping,salty pools&spas and etc.
ATC Function: salty water refractometer with automatic temperature compensation, allow you obtain accurate readings easier and faster
Salinity Refractometer is made of aluminum body and ABS rubber light and very sturdy, comes with a hard plastic case, a mini screwdriver, a dropper
Easy to Use: put 2-3 drops on the saltwaters prism, towards light then to get the accurate readings through the optic eyepiece, ideal for replacement the poor quality and difficult to read hydrometer refractometer
