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Aquarium Hydrometers - 8 - Page 3 - Super Savings! Save up to 33%


Super Savings! Up to 33% off on Aquarium Hydrometers at Naj Blog, Page 3. Top brands include ThePetStop, LemonBest, Gain Express, HIKARI, Aquarium Equip, BioTek Marine, Sinotech, Kordon, HydroLogic, OROROW, TekcoPlus, Inkbird, HM Digital, Sera, weipro, & Amzdeal. Hurry! Limited time offers. Offers valid only while supplies last.



Coralife Deep Six Hydrometer
Coralife Deep Six Hydrometer
By ThePetStop
SKU: #AP-B003XGCL8W
In Stock
$10.95

sku: AP-B003XGCL8W, mpn: AP-B003XGCL8W, ean: 0700580146562,

4.1 out of 5 stars with 284 reviews
Coralife Deep Six HydrometerBrand New and Guaranteed for 3 MonthsCoralife Deep Six Hydrometer,Coralife,ES00877...


LemonBest 0%-10% Automatic Temperature Compensation Salinity Refractometer Salt Water Aquarium by Lemonbest
LemonBest 0%-10% Automatic Temperature Compensation Salinity Refractometer Salt Water Aquarium by Lemonbest
By LemonBest
In Stock
$19.99

mpn: 1622507, 0703546318171, 0703546331774, ean: 0703546318171,

4.0 out of 5 stars with 26 reviews
Specifications: Type: Salinity Refract meter Material: Metal + plastic Quantity: 1pcs Color: As shown Measure Range: 0-100‰(0-10%); Min:1‰ Salinity Proportion: 1.000-1.070sg; Min:0.001 Size: 4*20cm / 2.1*0.9*0.9" (D*H) Package Include: 1* S...


Digital 1999mV ORP Pentype Redox Meter
Digital 1999mV ORP Pentype Redox Meter
By Gain Express
In Stock
$46.90
$44.90
You Save: 4%

mpn: Gai-2975, ean: 0701936210494,

4.9 out of 5 stars with 16 reviews
Measurements of ORP are fundamental to water and liquid quality, and this pocket ORP meteroffer high reliability and accuracy at a very affordable price. It measure theamount of Oxidation Reduction Potential (ORP) level in a solution. ORP is a tenden...


Hikari AccuProbe Aquarium Hydrometer, Full
Hikari AccuProbe Aquarium Hydrometer, Full
By HIKARI
In Stock
$11.89
$7.99
You Save: 33%

mpn: 96010, ean: 0015568985393,

4.2 out of 5 stars with 9 reviews
Wide Range Specific Gravity Meter For Marine Aquarium Use. Automatically collects perfect sample size by leveling off sample at top of dam."Dry Hands" design avoids contamination of aquarium or water sample. Accurate to 0.001 specific gravity and sal...


Hikari AccuProbe Aquarium Hydrometer, Mini
Hikari AccuProbe Aquarium Hydrometer, Mini
By HIKARI
In Stock
$10.78

mpn: 96005, ean: 0042055960052,

4.7 out of 5 stars with 148 reviews
Limited Range Specific Gravity Meter for Marine Aquarium Use. Perfectly sized for Nano aquariums. Accurate to 0.001 specific gravity and salinity (PPT) measurements.Ideally suited for use in Nano tanks, smaller setups or sumps of larger systems. Accu...


Dr. Marine Saltwater Marine Aquarium Salinity Portable Refractometer Meter ATC 0~10% reef
Dr. Marine Saltwater Marine Aquarium Salinity Portable Refractometer Meter ATC 0~10% reef
By Aquarium Equip
In Stock
$55.95
$55.67

mpn: Aqu-2979, ean: 4712304648883,

4.8 out of 5 stars with 283 reviews
Specifications - Heavy-duty and lightweight with its aluminum construction. - Equipped with scale measurement which provides direct reading, Easy to focus and calibrate. - Accurate testing results guaranteed - Cushioned with soft & comfortable non-sl...


BioTek Marine Salinity Refractometer
BioTek Marine Salinity Refractometer
By BioTek Marine
In Stock
$35.95

mpn: BTM-REFRACT, ean: 0866836000009,

4.7 out of 5 stars with 239 reviews
Highly accurate and easy to read. The BioTek Marine Refractometer measures "true" seawater salinity levels, instead of just saltwater. This means that it measures usually unaccounted for elements such as calcium and magnesium as well as sodium chlor...


ATC Dual scales 0-10% (1.000-1.070sg) brine Salinity Refractometer Seawater tester Rhs-10atc
ATC Dual scales 0-10% (1.000-1.070sg) brine Salinity Refractometer Seawater tester Rhs-10atc
By Sinotech
In Stock
$22.99
$15.99
You Save: 30%

mpn: RHS-10ATC, ean: 0799804054363,

4.4 out of 5 stars with 15 reviews
Specification: One scale checks the NaCl levels with the range of 0-100 ppt (with 1 ppt scale divisions) and the other scale gauges Specific Gravity with a range of 1.000 to 1.070 (±0.001 accuracy). Both enables the direct determination of salinity...


KORDON   #63150  Coral Sea Hydrometer
KORDON #63150 Coral Sea Hydrometer
By Kordon
In Stock
$13.68
$13.64

mpn: MODEL-63150, ean: 0048054631504,

4.7 out of 5 stars with 167 reviews
An essential piece of equipment for every marine aquarium keeper. Measures the salt saturation of water (specific gravity of the water.) Basically - it describes the weight of dissolved salt in the water. When the hydrometer is used regularly in salt...


UP Glass saltwater Hydrometer - reef Soft Coral salinity marine fish shrimp sea
UP Glass saltwater Hydrometer - reef Soft Coral salinity marine fish shrimp sea
By Aquarium Equip
In Stock
$15.95
$13.65
You Save: 14%

mpn: D667 UP???????, ean: 4712304644984,

4.7 out of 5 stars with 10 reviews
1. Easy to use 2. Green indicators are ideal range of water temperature and specific gravity for most salt water / marine aquariums 3. Hydrometer measures specific gravity 4. Need it for raising brine shrimp...


Sinotech Hand Held Brix 0-18% Metalworking Fluid Refractometer P-rhb-18atc with ATC
Sinotech Hand Held Brix 0-18% Metalworking Fluid Refractometer P-rhb-18atc with ATC
By Sinotech
In Stock
$16.00

mpn: P-RHB-18ATC, ean: 0799804054998,

4.7 out of 5 stars with 17 reviews
Metal working liquid refractometer Industrial Fluid Testers are refractometers designed to provide a repid, accurate method ofr determining the ratio and concentration of water soluble, cutting fluids and other industrial lubricants. They are design...


Hydro-Logic HLTDS DM-2 Industrial Dual TDS Monitor
Hydro-Logic HLTDS DM-2 Industrial Dual TDS Monitor
By HydroLogic
In Stock
$49.97

mpn: HLTDS, ean: 0812111010232,

4.9 out of 5 stars with 248 reviews
Measure the untreated water coming in vs. the purified water going out of your Reverse Osmosis system at any time. This is important in determining when the RO membranes need to be changed. Auto-Off function conserves battery power. The unit shuts of...


OROROW Brix Meter Refractometer Digital Hand Held Refractometers with Automatic Temperature Compensation for Sugar Content Measurement (Only) - Brix Scale Range 0 ~ 32%
OROROW Brix Meter Refractometer Digital Hand Held Refractometers with Automatic Temperature Compensation for Sugar Content Measurement (Only) - Brix Scale Range 0 ~ 32%
By OROROW
In Stock
$54.80

mpn: unknown, ean: 0652042844502,

4.4 out of 5 stars with 287 reviews
OROROW Potable Sugar Refractometer Brix Content Tester Specification Function: Sugar content measurement (Only) Brix scale: 0 ~ 32% Automatic Temperature Compensation: 10℃~30℃ Accuracy: ±0.2% Main material: Auluminum Package 1*Refractome...


TekcoPlus Salinity Refractometer ATC 0-28%, 0-280 ppt of NaCl, Measuring Sodium Chloride in Food, Salt, Seawater, soy sauce, Brine 0.2% division, made of ALUMINUM, with LED light and Pipettes
TekcoPlus Salinity Refractometer ATC 0-28%, 0-280 ppt of NaCl, Measuring Sodium Chloride in Food, Salt, Seawater, soy sauce, Brine 0.2% division, made of ALUMINUM, with LED light and Pipettes
By TekcoPlus
In Stock
$24.99

mpn: RETK-76, ean: 0713072683100,

4.7 out of 5 stars with 104 reviews
Salinity Refractometer has scales in range of 0 - 28% with ±0.2% accuracy. Designed to measure salt & brine solutions for testing the concentration of prepared food solution, used mainly in food industry. Scale enables direct determination of salini...


Inkbird Combo MINI Bluetooth Temp/RH Monitor Smart Sensor Data Logger Recorder Wireless + Temperature Humidity Controller Thermostat Hygrostat Thermometer Hygrometer (IBS-TH1 mini + ITC-308 +IHC-200)
Inkbird Combo MINI Bluetooth Temp/RH Monitor Smart Sensor Data Logger Recorder Wireless + Temperature Humidity Controller Thermostat Hygrostat Thermometer Hygrometer (IBS-TH1 mini + ITC-308 +IHC-200)
By Inkbird
In Stock
$95.99

ean: 0761895321709,

4.0 out of 5 stars with 36 reviews
IBS-TH1 mini Free iOS and Android APP to monitor temperature and humidity any time One phone can connect more than one MINI IBS-TH1 at the same time. And one MINI IBS-TH1 can be connected with more than one phone at the same time. Data record interva...


HM Digital PH-80 pH Meter Waterproof PH80 Tester HydroTester
HM Digital PH-80 pH Meter Waterproof PH80 Tester HydroTester
By HM Digital
In Stock
$37.98

mpn: 4334822627, ean: 0647608368806,

4.5 out of 5 stars with 153 reviews
HM Digital PH-80 pH HydroTester, PH80 Tester Meter, includes one pH 7 powder packet (makes 100 ml of solution when mixed with distilled water) and a small pack of storage solution. Authorized HM Digital Distributor - eSeasongear Brand new meter with ...


TekcoPlus Tri-Scale Salinity/Brix/Density Refractometer ATC Optics, 0-10% Brix and 0-100 ppt Salinity for CNC Cutting Liquid for Salt Sea Water Aquarium Tank Marine Industry with LED light + Pipettes
TekcoPlus Tri-Scale Salinity/Brix/Density Refractometer ATC Optics, 0-10% Brix and 0-100 ppt Salinity for CNC Cutting Liquid for Salt Sea Water Aquarium Tank Marine Industry with LED light + Pipettes
By TekcoPlus
In Stock
$25.01
$24.00
You Save: 4%

mpn: RETK-68, ean: 0713072683070,

4.4 out of 5 stars with 50 reviews
This optical Brix & Salinity Refractometer is designed to measure seawater (marine aquaria) or very low concentrated salt solutions & low concentrated of sugar solutions as well as reading salt solution density.With this refractometer, you can: * Mea...


sera Marin Hydrometer
sera Marin Hydrometer
By Sera
In Stock
$15.49

mpn: 8910, ean: 4001942089104,

4.3 out of 5 stars with 194 reviews
For the uncomplicated monitoring of marine water density. The salinity (salt contents) can be deduced from the measured density. Since the salinity of marine water in an aquarium must be kept constant, the aquarium water should regularly be checked a...


Ph Meter and Value Controller with Probe Ph2010, PH value online monitor and controller
Ph Meter and Value Controller with Probe Ph2010, PH value online monitor and controller
By weipro
In Stock
$69.99

mpn: wei-2956, ean: 0701807980174,

4.6 out of 5 stars with 87 reviews
When Ph value higher than set value it will switch on the power socket. Specification: LED DISPLAY AUTO. ELECTRONIC CONTROL AUTO. TEST PH AUTO. CONTROL Co2 work with Calcium Reactors SIMPLE OPERATION DURABLE AND RELIABLE IDEAL FOR SALTWATER a...


Amzdeal Salinity Refractometer Aquarium & Seawater - Dual Scale (1.0 to 1.070 S.G.)
Amzdeal Salinity Refractometer Aquarium & Seawater - Dual Scale (1.0 to 1.070 S.G.)
By Amzdeal
In Stock
$45.00

mpn: Amz-2927, ean: 0701979198902,

4.1 out of 5 stars with 107 reviews
IntroductionThis Amzdeal dual scale salinity refractometer is used to measure, monitor and control the concentration of salt water and brine, especially useful for aquarium and marine applications. This high quality refractometer measures on 2 scale...



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