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Aquarium Hydrometers - 8 - Blowout Sale! Save up to 71%


Blowout Sale! Up to 71% off on Aquarium Hydrometers at Naj Blog. Top brands include Inkbird, AquaticHI, Sinotech, Ray-JrMALL, WHATWEARS, Exo Terra, Generic, Antism, Accuni®, DealMux, Thailand, SING F LTD, UEETEK, Timiy, Isguin, Tanice, Yosoo-, & Poity. Hurry! Limited time offers. Offers valid only while supplies last.



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)
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)
By Inkbird
In Stock
$59.99

ean: 0761895321686,

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...


AquaticHI Digital PH Meter/Tester, Accurate Water Quality Testing Tool Drinking Water, Aquariums/Fish Tanks, Swimming Pools, Hydroponics, 0.01 PH Resolution, Range 0-14 PH, 2 Powders (Blue)
AquaticHI Digital PH Meter/Tester, Accurate Water Quality Testing Tool Drinking Water, Aquariums/Fish Tanks, Swimming Pools, Hydroponics, 0.01 PH Resolution, Range 0-14 PH, 2 Powders (Blue)
By AquaticHI
In Stock
$23.99
$17.99
You Save: 25%

mpn: 4334822592,

4.7 out of 5 stars with 50 reviews
STOP USING PH TEST STRIPS! THEY DO NOT PROVIDE THE HIGH ACCURACY YOU MAY NEED. HAVING A HARD TIME WITH PH TEST STRIPS BECAUSE YOU ARE COLOR BLIND? NO PROBLEM! GET YOURSELF A HIGHLY ACCURATE DIGITAL PH METER!DescriptionThe AquaticHI PH Meter is an...


Sinotech Brix 0-32% Metalworking Fluid Refractometer P-rhb-32atc
Sinotech Brix 0-32% Metalworking Fluid Refractometer P-rhb-32atc
By Sinotech
In Stock
$16.00

mpn: Sin-3050, ean: 0799804055049,

Product Description Brix Refractometer Is Developed For Working With Sugar Related Liquids Such as Fruit Juice, Soft-Drinks, Wine, And H1y To Help Monitor And Control Sugar Concentrations In Foods And Beverages. Measuring Range: 0-32% Brix Minimum...


Sinotech Hand Held 0-28% Salinity Refractometer P-rhs-28atc
Sinotech Hand Held 0-28% Salinity Refractometer P-rhs-28atc
By Sinotech
In Stock
$15.99

mpn: P-RHS-28ATC, ean: 0799804055063,

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...


Ray-JrMALL Resun Automatic Auto Fish Food Feeder Aquarium
Ray-JrMALL Resun Automatic Auto Fish Food Feeder Aquarium
By Ray-JrMALL
In Stock
$31.95
$21.30
You Save: 33%

mpn: RayMALL0640, ean: 0840597130489,

4.4 out of 5 stars with 40 reviews
Specifications: Size : 10 x 10 x 8 cm. Feed box inner diameter: 5 x 3 cm (D x T). Power supply: 2 x AA battery (not included). Operating environment: -10 ¡ãC - +50 ¡ãC. Package includ: 1 x Food feeder. 1 x Stand. 1 x User manual. 2 x Pas...


WHATWEARS LCD Automatic Aquarium Tank Pond Fish Food Feeder Timer
WHATWEARS LCD Automatic Aquarium Tank Pond Fish Food Feeder Timer
By WHATWEARS
In Stock
$24.98

mpn: unknown,

Mini shape, space-saving for your aquarium. Patented design for moistureproofing, mixing, and crumbling food. No jam, no clog and no fuss. Can fill the container with food without disassembling the automatic feeder. Programmable food volumes and feed...


Exo Terra Hygrometer
Exo Terra Hygrometer
By Exo Terra
In Stock
$6.39
$1.86
You Save: 71%

mpn: PT2466, ean: 0015561224666,

4.8 out of 5 stars with 11 reviews
The Exo Terra Hygrometer monitors humidity levels effectively and easily. The humidity level is an important factor in keeping your reptiles or amphibians healthy and stress free. It is easy to read and install. Maintaining the proper temperature and...


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...


Saltwater Hydrometer Glass - Reef Soft Coral Salinity Marine Fish Shrimp Tank
Saltwater Hydrometer Glass - Reef Soft Coral Salinity Marine Fish Shrimp Tank
By Antism
In Stock
$19.94

ean: 7104596137997,

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...


Accuni Professional Salinity Refractometer Automatic Temperature Compensation, Dual Scale [0-100ppt & 1.000-1.070 S.G.] Aquarium Sea Water Hydrometer
Accuni Professional Salinity Refractometer Automatic Temperature Compensation, Dual Scale [0-100ppt & 1.000-1.070 S.G.] Aquarium Sea Water Hydrometer
By Accuni®
In Stock
$22.50

ean: 6476120192088,

Description: 100% New Brand and High Quilty  Length: 20 cm Measuring range: salinity: 0-100 ‰, the specific gravity: 1.000 to 1.070 Minimum scale: salinity: 1 ‰, specific gravity: 0.001 Resolution: salinity: plus or minus 1 ‰, proportion:pl...


Jardin Salinity and Specific Gravity Plastic Shell Ocean Hydrometer, Clear
Jardin Salinity and Specific Gravity Plastic Shell Ocean Hydrometer, Clear
By DealMux
In Stock
$12.75

mpn: DLM-B00ARBAMGY, ean: 6886872339646,

Durable clear plastic hydrometer. Accurate and easy to read. Designed for use in warm water aquariums (18-28C). Readings are temperature-corrected & accurate to +/- 0. 002 specific gravity units which range from 1. 010 - 1. 030 specific gravity. 16-4...




Refractometer For Beer Wort, Dual Scale And Specific Gravity
Refractometer For Beer Wort, Dual Scale And Specific Gravity
By SING F LTD
In Stock
$22.49
$19.99
You Save: 11%

ean: 0656554875726,

4.9 out of 5 stars with 9 reviews
How to Use: 1. Open the cover plate, use the cleaning cloth to clean the main prism. 2. Drop a few drops of the solution on the prism, lightly close the cover plate in case of bubbles appear. Let the solution cover the whole prism surface. 3. Aim ...


Jardin Salinidade e Gravidade Específica plástico resistente Oceano Hidrômetro, Clear
Jardin Salinidade e Gravidade Específica plástico resistente Oceano Hidrômetro, Clear
By DealMux
In Stock
$12.75

mpn: PT_DLM-B00ARBAMGY, ean: 6281042136238,

Durable hidrômetro plástico transparente. Preciso e fácil de ler. Projetado para uso em aquários de água quentes (18-28C). As leituras são precisos e a +/- 0. 002 unidades de gravidade específica que variam de 010 1. corrigido em temperatura -...


UEETEK Submersible Pump Aquarium Fish Tank Powerhead Fountain Water Hydroponic
UEETEK Submersible Pump Aquarium Fish Tank Powerhead Fountain Water Hydroponic
By UEETEK
In Stock
$35.97
$23.98
You Save: 33%

mpn: GTHR1449Q569KRR, ean: 0192189614021,

4.5 out of 5 stars with 58 reviews
Note: The item is with US plug adapter:NLY for 110V, NOT for 220V. Please confirm the voltage of your area before placing an order.Feature- Color: Black.- Material: Ceramics.- Size: About 5.8 x 4.2 x 5 cm / 2.3 x 1.7 x 2.0 inch (L x W x H).- This s...


Timiy 78.7Inch tube Aquarium Air Bubble Stone with an Air Control Valve Fish Tank Ceramic Disk Generator White
Timiy 78.7Inch tube Aquarium Air Bubble Stone with an Air Control Valve Fish Tank Ceramic Disk Generator White
By Timiy
In Stock
$14.99

ean: 0665268099328,

Aquarium Air Bubble Stone with an Air Control Valve, Effect Fish Tank Ceramic Disk Generator Aerator with Suction Cup. Tank oxygen for fish Please use the tank soak for two hours before the effect is betteMicro air bubble diffuser stick stone, it's n...


Salinity Salt Refractometer Aluminum for Aquarium and Seawater Monitoring 0%-10% and 1.0 to 1.070 S.G
Salinity Salt Refractometer Aluminum for Aquarium and Seawater Monitoring 0%-10% and 1.0 to 1.070 S.G
By Isguin
In Stock
$29.55

mpn: 2018ISGUINPetPT074, ean: 7426869956327,

Description: 100% brand new and high quality Size(approx):195 x 40mm Measure Range:0-100%(0-10%) Accuracy:0.001sg(1%) Salinity Proportion:1.000-1.070sg Features Used to measure the salinity and specific gravity of the water Sturdy and light weighted ...


Tanice 0~32% Brix Refractometer Wort Specific Gravity 1.000~1.120 ATC Furit Beer Wine Sugar Test Tool Kit
Tanice 0~32% Brix Refractometer Wort Specific Gravity 1.000~1.120 ATC Furit Beer Wine Sugar Test Tool Kit
By Tanice
In Stock
$17.99

mpn: TANHM276US, ean: 0713289311445,

Features: Dual Scale: Brix Scale and Specific Gravity Scale Full range 0 to 32% Brix scale with 0.2% scale division 1.000~1.120 specific gravity scale for unfermented wort Sturdy metal body, made of durable Aluminum Require ambient light source only ...


Yosoo- LCD Digital Water Thermometer Fish Tank Temperature Measuring Electric Equipment(US 110-240V)
Yosoo- LCD Digital Water Thermometer Fish Tank Temperature Measuring Electric Equipment(US 110-240V)
By Yosoo-
In Stock
$16.99

mpn: Yosooraf1i8qntu, ean: 0741870071348,

Specification: Condition: 100% Brand New Item Type: LCD Water Thermometer Power Source: 110-240V Plug Type: US Plug Frequency: 50/60Hz Temperature Reading Range: 0℃-99℃ Measurement Accuracy: ±1℃ Working Temperature: 0℃-60℃ Temperature Reso...


Poity Aquarium Plants Tank CO2 Atomizer System Diffuser With Bubble Counter Generator 16 mm
Poity Aquarium Plants Tank CO2 Atomizer System Diffuser With Bubble Counter Generator 16 mm
By Poity
In Stock
$36.96
$24.64
You Save: 33%

mpn: 2S9163_SJRA, ean: 0610841035026,

4.0 out of 5 stars with 47 reviews
100% brand new and high quality Material: Aluminum + Acrylic Color: Silver,See pictures Easy to replace and cleaning ,Installed outside the aquarium, do not occupy space. This product with a non-return function meter bubble, security lock i, effectiv...



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