1. Home Page
    2. /
  2. Pet Supplies
    3. /
  3. Fish & Aquatic Pets
    4. /
  4. Aquarium Accessories
    5. /
  5. Aquarium Hydrometers

Delivery

Delivery time may vary depending on store and country. To learn more about Shipping Policy

Price Range

R$
-

Buy Aquarium Hydrometers Online in Brazil

Sort by
|
Agriculture Solutions Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
US Store
Agriculture Solutions

Agriculture Solutions Salinity Refractometer for Seawater and Marine Fishkeeping ...
4.6

1k+ bought

R$ 170

Salinity Refractometer for Aquarium Seawater Marine Fishkeeping Salinity Tester 0-100PPT & 1.000-1.070 Salinity Hydrometer Slatwater Refractometer with Automatic Temperature Compensation ATC
US Store
Hallocool

Salinity Refractometer for Aquarium Seawater Marine Fishkeeping Salinity Tester ...
4.5

200+ bought

R$ 158

19% OFF
Coralife Aquarium Fish Tank Deep Six Hydrometer For Measuring Water Salinity PPT and Specific Gravity
US Store
Coralife

Coralife Aquarium Fish Tank Deep Six Hydrometer For Measuring Water Salinity PPT ...
4.1

200+ bought

R$ 113 140

Digital Salinity Meter 3-in-1 Saltwater Tester Specific Gravity, Salinity & Temperature Pen Hydrometer, High Accuracy Water Quality Tester for Aquarium, Marine, Pool, Hydroponics, Aquaculture
US Store
Anbachi

Digital Salinity Meter 3-in-1 Saltwater Tester Specific Gravity, Salinity & ...
4.1

100+ bought

R$ 416

hygger Salinity Tester, Transparent Acrylic Aquarium Hydrometer Sea Specific Gravity Test Salinity Meter for Fish Tank Pond Water Saltwater Freshwater, Accurate Automatic Hydrometer
US Store
hygger

hygger Salinity Tester, Transparent Acrylic Aquarium Hydrometer Sea Specific ...
4

100+ bought

R$ 109

Abnaok Salinity Tester, Sea Specific Gravity Test for Fish Tank Pond Water Saltwater Freshwater, Accurate Automatic Hydrometer
US Store
Abnaok

Abnaok Salinity Tester, Sea Specific Gravity Test for Fish Tank Pond Water ...
4

50+ bought

R$ 116

YINMIK Pool pH Salt Tester, Digital Salinity Meter for Saltwater Pool, Simultaneous Display Salt pH TDS for Koi Pond, Reef Tank, Aquarium, Hydroponic PPM pH EC Reader, Hydrometer with S.G. Card
US Store
YINMIK

YINMIK Pool pH Salt Tester, Digital Salinity Meter for Saltwater Pool, Simultaneous ...
4.1

50+ bought

R$ 193

Professional Salinity Refractometer,Salinity Tester, Salt Tester for Saltwater Pool, for Saltwater Aquarium, Pools, and Tanks,Dual Scale 0-100 PPT & Specific Gravity 1.000-1.070 with ATC Function
US Store
TOOGOND

Professional Salinity Refractometer,Salinity Tester, Salt Tester for Saltwater ...
4.4

50+ bought

R$ 155

boxtech Aquarium Marine Test, Sea Saltwater Hydrometer, Reef Ocean Hydrometer Salinity Meter for Pool Aquarium Water Salinity Specific Gravity Test
US Store
boxtech

boxtech Aquarium Marine Test, Sea Saltwater Hydrometer, Reef Ocean Hydrometer ...
4.1

50+ bought

R$ 109

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
US Store
AUTOUTLET

AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine ...
4.6

50+ bought

R$ 163

Toddmomy 1 Set High Precision Hydrometer Salt and Brine Hydrometer Glass Saltwater Hydrometer for Pool Aquarium Water
US Store
Toddmomy

Toddmomy 1 Set High Precision Hydrometer Salt and Brine Hydrometer Glass Saltwater ...
3.9

R$ 95

ECO Stick Water Tester | EC/CF/PPM Meter for Hydroponics & Aquariums | 0.4-5.2 EC Range with Sensor | Automatic Temperature Compensation 0-50C
US Store
REXVTNS

ECO Stick Water Tester | EC/CF/PPM Meter for Hydroponics & Aquariums | 0.4-5.2 EC ...

R$ 315

Semetall Salinity Tester Transparent Acrylic Aquarium Sea Hydrometer Salinity Meter Salinity Specific Gravity Test for Fish Tank Pond Water Saltwater Freshwater
US Store
Semetall

Semetall Salinity Tester Transparent Acrylic Aquarium Sea Hydrometer Salinity Meter ...
3.6

R$ 101

Yosoo123 Accurate Automatic Hydrometer SaltSalinity Meter Salinimeter for Fish Long Type
US Store
Yosoo

Yosoo123 Accurate Automatic Hydrometer SaltSalinity Meter Salinimeter for Fish Long ...
3.5

R$ 66

MERRYHAPY 1set High Precision Glass Hydrometer for Aquariums Accurate Water Salimeter Compact and Lightweight Design for Testing and Fishkeeping
US Store
MERRYHAPY

MERRYHAPY 1set High Precision Glass Hydrometer for Aquariums Accurate Water ...
1

R$ 131

TDS EC Seawater Tester, C-100 5 in 1 Salinity Meter Digital Water Hardness Tester Pen Multifunction Liquid Detector Equipment with Backlight for Drinking Pools Hydroponics Quality Test
US Store
Leopacat

TDS EC Seawater Tester, C-100 5 in 1 Salinity Meter Digital Water Hardness Tester ...
1

R$ 168

Sea Hydrometer, Salinity Specific Test Saltwater Concentration Aquarium Testing Tool Test for Aquarium Fish Water Marine Saltwater HD-T-H018
US Store

Sea Hydrometer, Salinity Specific Test Saltwater Concentration Aquarium Testing ...
3

R$ 108

6% OFF
Digital Salinity Refractometer Aquarium Salt Tester 7 in 1 Salinity Tester for Monitoring Waters PH, EC, TES, ORP, Temp., Salinity & Specific Gravity, for Swimming Pool Hydroponic Marine Aquaculture
US Store
Hallocool

Digital Salinity Refractometer Aquarium Salt Tester 7 in 1 Salinity Tester for ...
2.5

R$ 339 362

Digital Salinity Tester Pool Saltwater Tester pH and Salt Meter | 6 in 1 Digital Salinity Meter PH Temp EC and TDS Meter for Aquarium Swimming Pool Hot Tub, Hydroponic, High Accuracy
US Store
Hallocool

Digital Salinity Tester Pool Saltwater Tester pH and Salt Meter | 6 in 1 Digital ...
3

R$ 309

Salinity Refractometer, Handheld Seawater Salinity Tester, 0-100Ppt Saltwater Salinity Measurer for Aquarium Fishkeeping Hydrometer
US Store
JEOZBM

Salinity Refractometer, Handheld Seawater Salinity Tester, 0-100Ppt Saltwater ...

R$ 217

Zerodis Aquarium Sea Hydrometer, Shape Salinity Tester with Plastic Rod Simple to Operate Accurate Salt Water Salinity Meter Auto Detection for Aquarium
US Store
Zerodis

Zerodis Aquarium Sea Hydrometer, Shape Salinity Tester with Plastic Rod Simple to ...
5

R$ 124

Salinity Tester, Automatic Accurate Salinity Meter with 0 to 40 Percentage Salinity Range Lightweight Sturdy Sea Hydrometer for Fish , Aquarium, Pond, Water, Saltwater, Freshwater
US Store
Asixxsix

Salinity Tester, Automatic Accurate Salinity Meter with 0 to 40 Percentage Salinity ...

R$ 124

balacoo Sea Water Densitometer Brine Hydrometer High Precision Salinity Hydrometer Densitometer for Aquarium, Saturated Fish Tank, in Both Fahrenheit Celsius
US Store
balacoo

balacoo Sea Water Densitometer Brine Hydrometer High Precision Salinity Hydrometer ...
3.9

R$ 293

Hikari AccuProbe Aquarium Hydrometer, Full
US Store
Hikari

Hikari AccuProbe Aquarium Hydrometer, Full
4

R$ 157

hygger Pool Salt Tester & PH Meter, 5-in-1 Digital Pool Water Tester, High Accuracy Salinity PH Temp EC and TDS Saltwater Pool Test Kit for Aquarium Swimming Pool Hot Tub and Swim Spas
US Store
hygger

hygger Pool Salt Tester & PH Meter, 5-in-1 Digital Pool Water Tester, High Accuracy ...
3.5

R$ 255

Aquariums Glass Hydrometer with Thermometers Salinities Tester for Marine Saltwater FishTanks Mariculture
US Store
PMFACE

Aquariums Glass Hydrometer with Thermometers Salinities Tester for Marine Saltwater ...

R$ 125

ZRM&E Seawater Hydrometer for Aquarium Aquaculture Seawater Densimeter Ocean Hydrometer Salinity Meter for Fish Tank Salinity Specific Gravity Test
US Store
ZRM&E

ZRM&E Seawater Hydrometer for Aquarium Aquaculture Seawater Densimeter Ocean ...
3

R$ 101

4% OFF
POPETPOP Aquariums Salinity Meter - Glass Hydrometer for Fish Tank Sea Water Density Measurement, Precision Salimeter for Accurate Salinity Testing, 10.43 Inch
US Store
POPETPOP

POPETPOP Aquariums Salinity Meter - Glass Hydrometer for Fish Tank Sea Water ...
3.8

R$ 132 137

MY MIRONEY 2-Pack Salinity Tester Sea Hydrometer Salinity Meter Specific Gravity Test for Aquarium Fish Tank Water Marine Saltwater
US Store
MY MIRONEY

MY MIRONEY 2-Pack Salinity Tester Sea Hydrometer Salinity Meter Specific Gravity ...
3.4

R$ 109

Sustee Aquameter Refill 2 Small cores
US Store
Sustee

Sustee Aquameter Refill 2 Small cores
4

R$ 105

AUNMAS Refractometer Salinometer, Seawater Salinity Meter Aquarium Optics Refractometers Temperature ATC Digital 0-10% Aquarium Sea Water Pool Marine Fishkeeping Hydrometer Measurement
US Store
AUNMAS

AUNMAS Refractometer Salinometer, Seawater Salinity Meter Aquarium Optics ...
4

R$ 180

Ade Advanced Optics Dual Scale 1.0 to 1.070 S.G. Salinity Refractometer for Aquarium & Seawater
US Store
Ade Advanced Optics

Ade Advanced Optics Dual Scale 1.0 to 1.070 S.G. Salinity Refractometer for ...
4.5

R$ 216

Refractometer Pet Urine Refractometer House Pet Dog Cat Protein Serum Plasma Hemoglobin Tester Urine Specific Gravity Concentration Meter Easy to Focus and Calibrate
US Store
ADDUE

Refractometer Pet Urine Refractometer House Pet Dog Cat Protein Serum Plasma ...

R$ 401

POPETPOP High Precision Hydrometer Salimeter Densitometer Aquarium Water Testing Fish Tank Salt Tester
US Store
POPETPOP

POPETPOP High Precision Hydrometer Salimeter Densitometer Aquarium Water Testing ...
3.1

R$ 163

Glass Aquarium Hydrometer with Built-in Marine Floating Salinity Tester 1.000-1.060 7.87in
US Store
SUXINRY

Glass Aquarium Hydrometer with Built-in Marine Floating Salinity Tester 1.000-1.060 ...

R$ 86

Salinity Refractometer Temperature Aquarium Optics Refractometer, Digital 0-10% Salinity Tester with ATC Function Salinity Hydrometer Kit for Seawater, Pool, Tank, Marine, Fishkeeping
US Store
NDNCZDHC

Salinity Refractometer Temperature Aquarium Optics Refractometer, Digital 0-10% ...

R$ 259

Refractometer Handheld Refractometer Pet Cat Dog Urine Specific Refractometer Pet Tool Aquarium Hydrometers
US Store
Marhynchus

Refractometer Handheld Refractometer Pet Cat Dog Urine Specific Refractometer Pet ...

R$ 193

Hand Held Salinity Refractometer Rhsn-10atc Built-in Calibration Knob 6pcs Per Lot
US Store
Sinotech

Hand Held Salinity Refractometer Rhsn-10atc Built-in Calibration Knob 6pcs Per Lot

R$ 1531

Premium Salinity Refractometer with Automatic Temperature Compensation for Saltwater, Aquarium, Marine Reef Tank Testing - Dual Scale 0-100ppt & 1.000 to 1.070 S.G.
US Store
ONE250

Premium Salinity Refractometer with Automatic Temperature Compensation for ...
4.7

R$ 185

XISAOK Aquarium Glass Hydrometer with Thermometer Salt Marine Salinity Tester Meter
US Store
XISAOK

XISAOK Aquarium Glass Hydrometer with Thermometer Salt Marine Salinity Tester Meter
4.2

R$ 93

Aquarium Hydrometer for Accurate Sea Water Density Testing Compact Salinometer for Fish Tank Easy to Use Seawater Quality Tester for Aquaculture
US Store
MUSISALY

Aquarium Hydrometer for Accurate Sea Water Density Testing Compact Salinometer for ...

R$ 110

1set Hydrometer Thermometer Premium Aquarium Salinometer for Accurate Measurement Compact Design for Easy Use in Fish Tanks
US Store
FUNOMOCYA

1set Hydrometer Thermometer Premium Aquarium Salinometer for Accurate Measurement ...

R$ 124

8% OFF
Hydrometer Saltwater Aquarium Salinity Tester for Saltwater Aquarium Hydrometer for Testing Salinity and Specific Gravity
US Store
baixikly

Hydrometer Saltwater Aquarium Salinity Tester for Saltwater Aquarium Hydrometer for ...
3.9

R$ 86 93

1 Set Seawater Tank Density Meter Saltwater Meter Salt and Brine Hydrometer Water Quality Tester Aquarium Salinometer Aquarium Areometer Glass Plastic Salt Water
US Store
FUNOMOCYA

1 Set Seawater Tank Density Meter Saltwater Meter Salt and Brine Hydrometer Water ...

R$ 103

14% OFF
Salt Tester, Platinum Electrode & Concave Surface for Lab-Grade Accuracy, Digital Salinity Meter for Aquaculture/Saltwater/Aquarium, Range 0-50ppt/1.0001.037SG
US Store
LOHAND

Salt Tester, Platinum Electrode & Concave Surface for Lab-Grade Accuracy, Digital ...
3.8

R$ 475 555

Salinity Meter Aquarium Hydrometers Salinity Tester Hydrometer Saltwater Aquarium Pool Fish Tank Water Tester Sea Water Salinity Specific Gravity TestRectangle
US Store
QIANJINL

Salinity Meter Aquarium Hydrometers Salinity Tester Hydrometer Saltwater Aquarium ...
3.7

R$ 174

Professional Aquarium Test Tool Hydrometer Densitometer for Fish Tank Wide Application Simple Operation
US Store
TOGEVAL

Professional Aquarium Test Tool Hydrometer Densitometer for Fish Tank Wide ...

R$ 140

Aquariums Glass Hydrometer with Thermometers Salinities Tester for Marine Saltwater FishTanks Mariculture
US Store
MLYCZONW

Aquariums Glass Hydrometer with Thermometers Salinities Tester for Marine Saltwater ...

R$ 70