Looking for the best Aquarium Hydrometers?
Discover now our comparison of the best Aquarium Hydrometers. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Aquarium Hydrometers are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Aquarium Hydrometers in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
SaleNo. 1
Coralife Aquarium Fish Tank Deep Six Hydrometer For Measuring Water Salinity PPT and Specific Gravity
- Coralife is one of the marketâs leading manufacturers of premium aquarium products.
- Coralife's Hydrometer takes a true water sample at six inch depth.
- Easy to read and accurate this specific gravity meter is designed to give temperature-corrected readings in warm water aquariums.
−16%
$13.33
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No. 2
hygger Salinity Tester, Transparent Acrylic Aquarium Hydrometer Sea Specific Gravity Test Salinity Meter for Fish Tank Pond Water Saltwater Freshwater, Accurate Automatic Hydrometer
- đMarine hydrometer: Tests salinity and specific gravity in marine aquariums to help maintain a healthy tank
- đEasy to Read & Use: Simply dunk in aquarium to fill with water, then set on level surface to read. The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result.
- đSpecification: The reading is temperature-corrected and accurate to +/-0.001. The unit of specific gravity is 1. 000-1. 030 (ppt value: 0-43.9 degrees), the safe area is 1.020-1.023 (ppt value: 30.2-34.2 degrees), and the low specific gravity area is 1.000-1.019 (ppt value: 0- 28.9 degrees), the higher specific gravity area is 1.024-1.030 (ppt value: 35.5-43.9 degrees).
- đSafe Material: The salinity tester is made of transparent acrylic material, which is relatively hard and easy to read the salt and specific gravity of your marine aquarium. After use, soak this saltwater meter in mild acid(vinegar) for 30 minutes, rinse with tap water and air dry.
- đWide Usage: Fit for brackish and reef salt marine aquariums. Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes salinity and specific gravity scales.
$9.99
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SaleNo. 3
Fluval Sea Hydrometer for Aquarium, Medium
- Helps measure specific gravity and salt level in marine aquariums
- Features large, easy to read markings
- Simple design-blends in easily
- Item Package Weight: 0.185
−20%
$9.19
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SaleNo. 4
Dr. Marine Glass Saltwater Hydrometer Thermometer Reef Soft Coral
- Ensures proper gravity of aquarium water. Easy to use.
- Ensures all water has the same salinity within aquarium.
- Green indicators are ideal range of water temperature and specific gravity for most salt water / marine aquariums.
- Measure both Temperature and Specific Gravity of the water.
- SIZEïŒ19.2CM(7.5"). Glass Hydrometer; Measures Celsius and Fahrenheit
−8%
$10.99
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No. 5
Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
- 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.
$17.99
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SaleNo. 6
Hikari AccuProbe Aquarium Hydrometer, Full
- "Dry Hands" design avoids contamination of aquarium or water sample
- Accurate to 0.001 specific gravity and salinity (PPT) measurements
- Auto-temperature correcting design
- Designed to give a temperature-corrected reading in warm water aquariums â 68°F to 85°F (20°C to 30°C)
- Self-leveling, hanging device included
No. 7
AUTOUTLET Salinity Refractometer Saltwater Aquarium for Seawater, Pool, Tank, Marine, Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Salinity Hydrometer Kit
- ăAUTOUTLET Salinity RefractometerăThis salinity tester is used to measure salinity of brine/seawater, monitor and control the concentration of saltwater. Ideal for aquariums and marine applications.
- ăMeasures on 2 ScalesăThis saltwater hydrometer measures on dual scales: specific gravity and salinity. Ideal for aquariums, marine monitoring, agriculture, gardening and educational purposes.
- ăMeasurement RangeăDensity of 1.0-1.070 with min scale of 0.001. Concentration of 0-100â°, with min scale of 1â° (1â°=1PPT=1000PPM, PPT means âparts per thousandâ, PPM means âparts per millionâ)
- ăWith ATC FunctionăATC compensation Range (i.e. Built-in Automatic Temperature Compensation System) from 10â to 30â.
- ăSolid and LightweightăSalinity meter is made of durable aluminum, which is non-staining, non-corrosive and rustless. Also, it's compact in size with rubberized grip handle, very easy to carry.
$16.99
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No. 8
Hallocool Salinity Refractometer for Seawater Marine Fishkeeping Aquarium 0-100PPT & 1.000-1.070 Salinity Hydrometer Salinity Tester with with Automatic Temperature Compensation (ATC)
- MEASURES ON 2 SCALES - Aquarium Refractometer features specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100â° ( 1â°=1 PPT=1000PPM), allow to get two results in different units by one test
- WIDELY USE - Salinity Refractometer measures saltwater, salinity of water or seawater, ideal for aquariums, marine monitoring, fish-keeping, and saltwater pools
- ATC FUNCTION - Saltwater refractometer with automatic temperature compensation (ATC) function, allow you to obtain the accurate result faster and easier
- EASY TO USE - Put 2-3 drops of sample on the refracotmterâs prism, towards light, read the accurate readings through the optics eyepiece directly
- DURABLE MATERIAL: The optic salinity tester is made of aluminum and ABS rubber, anti-rust, non-staining and resistant abrasion. Portable Refractometer comes with plastic case, mini screwdriver,a dropper and a cleaning cloth
$15.99
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No. 9
Digital Salinity Tester for Salt Water - Waterproof IP67 Salinity Meter with ATC Large Range 0-200ppt Saltwater Tester for Seawater, Aquariums, Marine Monitoring, and Koi Fish Pond by ORAPXI
- Salinity Range: 0~9999ppm/10~200ppt or 0.0-25%, ORAPXI salinity tester has an automatic temperature compensation function(32°F~140°F), which can decrease the error caused by the change of liquid temperature.
- Wide applications: There are various purposes for the salinity tester. This instrument can not only detect the salt content of edible salt, salt water pool and koi fish pond, but also the salinity of seawater, marine, salt water fish tank salt level testing.
- Backlit design: There is no need to worry about seeing the displayed value if the light is insufficient. ORAPXI salinity meter features a green backlit LCD to help you see the measurement results clearly in any situation.
- 4-in-1 salinity tester: The multi-parameter Tester can test Salinity, TDS, EC and Temperature in an accurate, quick and reliable manner for most regular water solutions' testing.
- After-sales: 30-day free return/replacement and we promise respond your any questions about the product within 12 hours.
$28.99
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No. 10
Actopus Hydrometer Salinity Tester for Aquarium Sea Fish Tank Salt Water
- Quick measurement on salt level, specific gravity.
- Rinse with fresh water after use
- Specific gravity range 1.000 - 1.030
- Salinity range 0-40
$8.99
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Last update on 2024-04-28 / Affiliate links / Images from Amazon Product Advertising API