Search  for anything...

capetsma Salinity Tester, Accurate Sea Hydrometer Aquarium Marine Salinity Meter for Fish Tank Pond Water Saltwater Freshwater Specific Gravity Test

  • Based on 0 reviews
Condition: New
Checking for product changes
$9.99 Why this price?
Save $8.99 was $18.98

Buy Now, Pay Later


As low as $2 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jun 4
Order within 17 hours and 13 minutes
Available payment plans shown during checkout

Features

  • Safe Material & Unique Design: Made of durable Acrylic, this Fish Tank Test Kit salinity Hydrometer is designed with an automatic level function.
  • Quickly, easily, and accurately measurement: With this hydrometer saltwater aquarium test kit, you can test your marine aquarium's salt level and specific gravity, and It is optimum to be put into below 6" deep water to avoid the error caused by the oil film on the water.
  • Higher Accuracy & safe zone indicated: Readings are temperature-corrected & accurate to +/- 0. 001. specific gravity units ranges from 1. 000 - 1. 030 with a safe zone of 1.020-1.023. The outside range of scale indicates salinity ppt, ranges from 0-40, safe zone is 27-31.
  • Easy to Read & Clean: The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result. After use, soak this saltwater meter in mild acid(vinegar) for 30 minutes, rinse with tap water and air dry. Do not disassemble.
  • Wide 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.Suitable for fresh water and sea water.

Description

Description: Attention: Note: Fit for warm water aquarium (20°C -30°C) or (65°-85°F) 1.Slowly place the hydrometer into water. When testing, make sure the test water level reaches the wave scale. 2.If there are air bubbles stuck on the pointer during the product test or while put it into water, use a plastic stick to blow the foam to make the bubble dismissing,to ensure accurate readings. 3.Place the product in the pool or on the horizontal line outside the pool to accurately obtain the test results. 4.When any salt is on the pointer, the salinity hydrometer will not read correctly. After use the hydrometer, it should be cleaned with tap water,then Soak in warm water or vinegar for 30 minutes, then air dry in cool place. Shape and size: Item Type: Salinity Hydrometer Material: Plastic Color: Clear (shown as pictures) The proportion of range: 1.000-1.030 Salinity range: 0-40 Size:(LWH)2414.53mm Weight :0.11kg Packing list: 1 x Hydrometer. 1 x Stick.

Package Dimensions ‏ : ‎ 8.7 x 5 x 0.9 inches; 3.21 ounces


Date First Available ‏ : ‎ March 1, 2019


Manufacturer ‏ : ‎ Capetsma


Best Sellers Rank: #86,455 in Pet Supplies (See Top 100 in Pet Supplies) #22 in Aquarium Hydrometers


#22 in Aquarium Hydrometers:


Customer Reviews: 3.8 out of 5 stars 185


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good
Not sure how accurate it is, but it's a good reference point. I have a 2000+ gallon pond and I just put salt in it last month. This device says my pond is about 3ppt, which is ideal for pond fish and plants (3-5ppt is normal). Super easy to use. Just rinse with warm water afterwards.
Reviewed in the United States on June 14, 2019 by amberlgay

  • !!!!REEFERS!!!! DOES NOT WORK PLS BUY A REFRACTOMETER
I've been dissolving salt for 24 hours and when I went to read it it said it was 1.014sg so I added more salt. I went back a couple of hours later and when I retested it was still 1.014sg. I knocked the air bubbles out both time and it still doesn't change. IF YOU ARE FIRST STARTING WITH SALTWATER TANK PLEASSSEE BUY A REFRACTORMETER. Save up and spend the extra $10 dollar in order not have to deal with this. ... show more
Reviewed in the United States on October 5, 2020 by Liz

  • Great price
Works well. Just remember to wash in clean water afterwards
Reviewed in the United States on March 22, 2022 by Karen E. Gilbraith

  • Reading was not accurate
Mine was not accurate which could be bad if I didn’t notice. I run a reef tank and hydrometer read 1.024. Took my water sample to my local fish store and it read 1.029 with a refractometer. No bubbles where present when I did the test. It is always rinsed with freshwater ro water before and after
Reviewed in the United States on July 29, 2020 by Preshis Avalos

  • Didn’t work for us
It came with a crack and just doesn’t read the salinity accurately
Reviewed in the United States on December 26, 2020 by Rick & zanna

  • Great qualify
Would recommwnd
Reviewed in the United States on March 17, 2023 by Juanaenae

  • Works really well for the price
Great price on this item. Fast shipping. I'm really happy with it
Reviewed in the United States on August 18, 2021 by James K Filbeck

  • Worthless for koi ponds
I bought this cheap and easy to use gadget for my koi pond. I was wanting to keep it under 6 ppt. I had followed the salt suggested application instructions but decided that, after applying 2 cups to my 2500 gallon pond (so, very little), that I’d like to measure it as I go, to be sure. I didn’t expect it to already be 6 ppt. I freaked! I went to the aquarium store to have them test the salinity with their fancier gadgets. I their test came out to zero. Relieved, but annoyed. This thing is utterly worthless to me. ... show more
Reviewed in the United States on May 31, 2021 by Paige L. Stafford

Can't find a product?

Find it on Amazon first, then paste the link below.