Editor's Choice - Our Favorite emours Aquarium Hydrometers
1. emours Aquarium Gloves Waterproof Elbow Length Long Sleeve Scratch Resistant Work Gloves 27-Inch
User Ratings: 71 6
emours First Impressions
"Great product."At first, I was getting bubbles sticking to the rotating arrow. I decided to upgrade and it was easy to calibrate. The water was at what I expected it should be. Pretty darn accurate for the price. I don't want to deal with temperature correction or. Wipe down glass surface to dry it and put it back on the shelf til next time. When I'm testing my aquarium water, I want immediate, clear results.
- emours Aquarium Gloves Waterproof Elbow Length Long Sleeve Scratch Resistant Work Gloves 27-Inch
- Material: Polyvinyl chloride (PVC) + knit cloth; durable
- PVC material is chemical and scratch resistant. With velvet inner, can keep your hand warm even in the cold water environment.
- 27-Inch extra long design. Can keep your hand from getting wet inside the tank .Hand portion size:18x12.5cm/ 7 x 4.9inch ( L x W) ,one size fits most all(medium to large size); with elasticated cuffs, protects hands and arms up to the shoulder;
- Thicken material,fully lined,waterproof. Keep your hands and arm dry when changing fish tank water, also can prevent allergies, cuts during aqua maintenance;
- Multifunctional. Can be used in aquarium cleaning, also can be used in aquatic seafood fishing operations.
- Manufacture: Kensid
- Editor's Impressions Of The emours
- Accuracy [star rating='3.7']
- Quality [star rating='3.5']
- Value For Money [star rating='4.5']
- Affordability [star rating='4.3']
emours Final Thoughts
"Great price."My only criticism would be that it's a little too dark. This one here was much cheaper,& exactly the same as they sold in the store. Make sure to knock out the bubbles on the white dial by hitting it with your knuckle. Calibrate with distilled water and test every so often. At first, I was getting bubbles sticking to the rotating arrow. Now that it's calibrated I love it! Compare it with the refractometer and adjust the refractometer so that it matches.
Overall Score
4.4
(40 Points)
PRICE AVAILABLE ON AMAZON
Here Are Some Other Related Aquarium Hydrometers
2. Ade Advanced Optics aaosal Professional Automatic Temperature Compensation Sea Water Salinity Refrac...
User Ratings: 68
Ade Advanced Optics aaosal First Impressions
"What else can I say."I've tried several different refractometers now and they are mostly the same. When I saw the price offered on this one, I decided to buy and I love it. The refractor was off out off the box. I would suggest purchasing the salt calibration solution. I don't want to deal with temperature correction or. The product itself is very good quality and the included instructions are very clear. Looks to provide very accurate readings.
- Ade Advanced Optics aaosal Professional Automatic Temperature Compensation Sea Water Salinity Refractometer for Aquarium, Hydrometer, 0-100 ppt and 1.000-1.070 Salinity S.G.
- Manufacture: Ade Advanced Optics
- Editor's Impressions Of The Ade Advanced Optics aaosal
- Accuracy [star rating='3.5']
- Quality [star rating='5']
- Value For Money [star rating='4.5']
- Affordability [star rating='3.6']
Ade Advanced Optics aaosal Final Thoughts
"Arrived quickly."This requires repeatedly tapping the arm with a pencil. On the shaft of the refractometer, there's a little, rubber-covered nub. However, the numbers are soooo small it is sometimes hard to read. I have tried others before but this has given me accurate and stable results. I would suggest purchasing the salt calibration solution. It's fast, it's tidy, and it's accurate. When I compared it to what my local pet store was reading my water at it was dead on.
Overall Score
4.5
(9 Points)
PRICE AVAILABLE ON AMAZON
3. Sinotech Hand Held Brix Honey Refractometer Rhb-90atc withCalibration Oil
Sinotech First Impressions
"This tool does that."When I compared it to what my local pet store was reading my water at it was dead on. I would recommend this product to anyone that has a marine aquarium. Great product I used for beer making and my saltwater aquarium. Plus it is super easy to use and clean. I don't want to deal with temperature correction or. Get precise salinity readings in moments. Does just as good of a job of any meter you would buy at the store!
- Sinotech Hand Held Brix Honey Refractometer Rhb-90atc withCalibration Oil
- Test Fruit Brix And Honey Water
- Heavy-duty and lightweight With its aluminum construction
- ATC CompensationRange: 10°C~30°C (50°F~86°F)
- Protable Type
- 58-90%Brix 38-43 Be° (Baume) 12-27% Water
- Manufacture: Sinotech
- Editor's Impressions Of The Sinotech
- Accuracy [star rating='3.4']
- Quality [star rating='3.2']
- Value For Money [star rating='2.5']
- Affordability [star rating='3.4']
Sinotech Final Thoughts
"NO BUBBLES!"I bought this and a hydrometer because of the reviews saying its not accurate. I compared the readings using this hygrometer and the calibrated refractometer. Works great,& comes in a storage box. Used distilled water to calibrate, the screw is located under the rubber cap. So worth it considering its great quality and great price. My only criticism would be that it's a little too dark. This requires repeatedly tapping the arm with a pencil.
Overall Score
3.0
(1 Points)
PRICE AVAILABLE ON AMAZON
4. Aquarium Refractometer, Seawater Salinity Meter Aquarium Optics Refractometer Temperature ATC Digita...
Hongzer First Impressions
"Easy to use."Functions just as it is supposed to. It is essential to get some specialized aquarium calibration fluid for 1. It is easy to read and perform the procedure in seconds. It did not need adjusting to calibrate, though I tried to just to see how it worked. Once I figured that out, it works great. Be sure to buy the calibration solution and test this before use! So once your instant ocean shows a measurement.
- Aquarium Refractometer, Seawater Salinity Meter Aquarium Optics Refractometer Temperature ATC Digital 0-10%
- 0 to 10% salinity, 0.01% scale.
- Durable aluminum body, durable and can use for a long time.
- Adjust the focus by twisting the handle.
- Compact design with rubber handle.
- Soft and flexible eyepiece for added comfort. Instant and reliable aqueous solution measurement.
- Manufacture: Hongzer
- Item Weight: 8.4 ounces
- Product Dimensions: 6.69 x 1.57 x 1.57 inches
- Editor's Impressions Of The Hongzer
- Accuracy [star rating='5']
- Quality [star rating='5']
- Value For Money [star rating='5']
- Affordability [star rating='5']
Hongzer Final Thoughts
"So far so good."It is a little cheaper made but it works great for the cost! Pretty darn accurate for the price. Ambient room light at night is not enough and makes what you're viewing dark. Normally that gives the more accurate reading. Now its easy to make sure I have the correct amount of salt in my aquariums. I was surprise that the product was really cheap compare to the other ones. This refractor should last a good number of years.
Overall Score
5.0
(2 Points)
PRICE AVAILABLE ON AMAZON
5. AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100P...
User Ratings: 83 2
AUTOUTLET 8541957195 First Impressions
"These seem spot on."Not sure how accurate it is, but it's a good reference point. Ambient room light at night is not enough and makes what you're viewing dark. If you read the directions in the box for the refractometer it's for freshwater. And it is much more accurate than my old salinity meter. Waterproof if you accidentally drop it in the pool. My corals will be much happier now. It is a little cheaper made but it works great for the cost!
- 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
- 【Salinity Refractometer】Measure 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 Scales】Specific Gravity (D 20/20) and parts per thousand and replaces your poor quality and difficult to read hydrometer.
- 【Density Measurement Range】1.0-1.070, Minimum Scale is 0.001.
- 【Concentration Measurement Range】0-100‰, Minimum Scale is 1‰.
- 【ATC】Automatic Temperature Compensation, 0-10°C.
- Due to the difference of human focal lengths,when during adjusting, you may just need to rotate in reverse or re-adjust the distance between your eye and the eyepiece.
- It's necessary to keep the surrounding environment with sufficient brightness and suitable temperature during use. Generally,there is no error in the temperature between 10℃-30℃.(50℉-86℉)
- Specific Gravity (D 20/20) and parts per thousand and replaces your poor quality and difficult to read hydrometer.
- Manufacture: AUTOUTLET
- Product Dimensions: 7.87 x 3.54 x 2.36 inches; 8.48 Ounces
- Editor's Impressions Of The AUTOUTLET 8541957195
- Accuracy [star rating='5']
- Quality [star rating='4.2']
- Value For Money [star rating='4.9']
- Affordability [star rating='5']
AUTOUTLET 8541957195 Final Thoughts
"2 failed, 3 did not."Just rinse with warm water afterwards. I bought this and a hydrometer because of the reviews saying its not accurate. Now that it's calibrated I love it! I HIGHLY recommend this to Aquarists! I have purchased before will buy again! I got this to have a more accurate read than the hydrometer. Too that makes it appear too cheap.
Overall Score
4.7
(757 Points)
PRICE AVAILABLE ON AMAZON
6. HunterBee Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automat...
User Ratings: 53
HunterBee First Impressions
"Would buy another!"And it is much more accurate than my old salinity meter. It works, we'll i assume it does as i have nothing to compare it to. I have a 2000+ gallon pond and I just put salt in it last month. Find a good light source to make reading easier. On the shaft of the refractometer, there's a little, rubber-covered nub. It works, we'll i assume it does as i have nothing to compare it to. I would recommend this product to anyone that has a marine aquarium.
- HunterBee Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
- 1.for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation
- 2.Designed for direct reading of salt density in sea water.
- 3.Rugged, durable construction - made from corrosion resistant brass.
- 4.High contrast demarcation line for easy, accurate readings.
- 5.Easily adjusted zero line by means of readily accessible screw.
- Manufacture: 步仁科技
- Editor's Impressions Of The HunterBee
- Accuracy [star rating='3.2']
- Quality [star rating='4.5']
- Value For Money [star rating='3.5']
- Affordability [star rating='3.6']
HunterBee Final Thoughts
"Good product."Simple to use, but if there are any air bubbles the results will be way off. I bought this and a hydrometer because of the reviews saying its not accurate. Be sure to buy the calibration solution and test this before use! I felt it wasn't accurate which was verified by my LFS. I've tried several different refractometers now and they are mostly the same. On the shaft of the refractometer, there's a little, rubber-covered nub. I tried it over and over and no bubbles!
Overall Score
4.2
(7 Points)
PRICE AVAILABLE ON AMAZON
7. Ade Advanced Optics aaosal-B Automatic Temperature Compensation Sea Water Salinity Refractometer for...
User Ratings: 26 41
Ade Advanced Optics aaosal-B First Impressions
"Be well my friend."Comes with a nice carrying case for easy and secure transportation. I have gone two years in this hobby with a hydrometer. It says in the instructions to use distilled water. Good quality and simple to use refractometer. The refractor was off out off the box. It is heavy and easy to read in any light. I use this for my 10g brackish and it works ok.
- Ade Advanced Optics aaosal-B Automatic Temperature Compensation Sea Water Salinity Refractometer for Aquarium, 0% - 10% and 1.0 to 1.070 S.G. Dual Scale Hydrometer, Black
- Manufacture: Ade Advanced Optics
- Editor's Impressions Of The Ade Advanced Optics aaosal-B
- Accuracy [star rating='2.2']
- Quality [star rating='3.2']
- Value For Money [star rating='3.5']
- Affordability [star rating='3.1']
Ade Advanced Optics aaosal-B Final Thoughts
"Couldn't be happier."Would be nice if stem were slightly larger for easier read. Looks to provide very accurate readings. Works well on my Saltwater Aquarium. I've tried several different refractometers now and they are mostly the same. 027, I'm so glad I bought this one and it came spot on. I use this to check the specific gravity of my marine aquarium. I felt it wasn't accurate which was verified by my LFS.
Overall Score
3.0
(4 Points)
PRICE AVAILABLE ON AMAZON
8. KKmoon Salinity Refractometer, Handheld Seawater Hydrometers, Optical Salinity Tester, Portable ATC ...
User Ratings: 70 8
KKmoon First Impressions
"Decent case."Hate the batteries, but once loaded, it seems to work fine. Get precise salinity readings in moments. I have a 2000+ gallon pond and I just put salt in it last month. The hydrometer is good, but I ordered two Shrimp CRS Miniature glass figurine, Clear. So once your instant ocean shows a measurement. All very easy and I feel as though I am getting an accurate salinity reading. The reading is big enough for you to read and it comes with the batteries.
- KKmoon Salinity Refractometer, Handheld Seawater Hydrometers, Optical Salinity Tester, Portable ATC Refractometer, Dual Scale Saltwater Tester for Aquarium, Seawater, Pool, Fish Tank
- Measure salt water or salinity of water, ideal for aquariums and marine monitoring.
- With measurement level for direct reading. Adjustable manual focus, easy to focus and calibrate.
- Handheld design and non-slip rubber handle for easy operation.
- Instant Reading Result: Just need 2-3 drops of solution and a few seconds, you can get accurate readings.
- Built-in automatic temperature compensation(ATC) to get faster results.
- Manufacture: KKmoon
- Item Weight: 8.9 ounces
- Editor's Impressions Of The KKmoon
- Accuracy [star rating='4.4']
- Quality [star rating='4']
- Value For Money [star rating='3.8']
- Affordability [star rating='4.8']
KKmoon Final Thoughts
"This tool is AMAZING!"The refractor was off out off the box. I have a 2000+ gallon pond and I just put salt in it last month. Clear readout with the ability to calibrate and focus. I've tried several different refractometers now and they are mostly the same. He is too cute not to want to take care of properly. When I saw the price offered on this one, I decided to buy and I love it. Very easy, turn screw very slowly to calibrate.
Overall Score
4.2
(18 Points)
PRICE AVAILABLE ON AMAZON
9. Exo Terra Terrarium Hydrometer
User Ratings: 66 5
Exo Terra PT2466 First Impressions
"Great product."Great product I used for beer making and my saltwater aquarium. I couldn't decide between this and one of the float arm meters or both. For the price you definitley cant beat this meter is great! However, the numbers are soooo small it is sometimes hard to read. 027, I'm so glad I bought this one and it came spot on. Does just as good of a job of any meter you would buy at the store! He is too cute not to want to take care of properly.
- Exo Terra Terrarium Hydrometer
- Wipe clean
- Analog hygrometer
- Adhere the hygrometer in the terrarium
- Clear analog dial display
- Easy to read and install
- Great for monitoring the humidity levels
- Manufacture: Exo Terra
- Product Dimensions: 0.5 x 4.1 x 7 inches; 0.64 Ounces
- Editor's Impressions Of The Exo Terra PT2466
- Accuracy [star rating='3.4']
- Quality [star rating='3.9']
- Value For Money [star rating='4.9']
- Affordability [star rating='4.9']
Exo Terra PT2466 Final Thoughts
"Great tool."I have a 2000+ gallon pond and I just put salt in it last month. Plus it is super easy to use and clean. Bubbles can greatly affect the reading. The water was at what I expected it should be. Does just as good of a job of any meter you would buy at the store! Simple to use, but if there are any air bubbles the results will be way off. Now its easy to make sure I have the correct amount of salt in my aquariums.
Overall Score
4.3
(1002 Points)
PRICE AVAILABLE ON AMAZON
10. Kocome Marine Hydrometer Reef Fish Tank Aquarium Water Salinity Specific Gravity Tester
User Ratings: 71
Kocome First Impressions
"Great kit."I use this for my 10g brackish and it works ok. Plus it is super easy to use and clean. I did NOT calibrate, but am getting accurate readings. I needed this product and it is a lot less expensive than the local aquarium store. It's fast, it's tidy, and it's accurate. But with alittle persistance I am able to read it. Don't care much for having to post a review in order to activate warranty.
- Kocome Marine Hydrometer Reef Fish Tank Aquarium Water Salinity Specific Gravity Tester
- Accurate and easy to read.
- Size: 3.54×4.72×0.59in (Approx.).
- Readings are temperature-corrected & accurate to +/- 0. 002 specific gravity units which range from 1. 000 - 1. 030 specific gravity.
- It is optimum to be put into below 6" deep water, so it can avoid the error from the oil slick.
- Perfect for testing both salinity and specific gravity of your brackish and marine tank.
- Manufacture: KOCOME
- Editor's Impressions Of The Kocome
- Accuracy [star rating='3.6']
- Quality [star rating='4.2']
- Value For Money [star rating='4']
- Affordability [star rating='3.9']
Kocome Final Thoughts
"026 as expected."I would recommend you to purchase this and skip the other ones. I have tried others before but this has given me accurate and stable results. On the shaft of the refractometer, there's a little, rubber-covered nub. I couldn't decide between this and one of the float arm meters or both. Very easy, turn screw very slowly to calibrate. Looks to provide very accurate readings. The instant ocean hydrometer will always be right.
Overall Score
4.6
(9 Points)
PRICE AVAILABLE ON AMAZON