Skip to main content
eBay

  • RHS-10ATC Salinity Refractometer 0-10% ATC, Aquarium Saltwater BLUE RUBBER STRIP

  • Condition
  • New
  • Time left
  • 14h 26m
  • Returns
  • Accepted within 14 days
  • US $18.29
    Buy It Now
  • Quantity 10+ Available
  • Sold 75 items
  • See details

3d 3h 44m left
$22.60
Buy It Now
or Best Offer
Free Shipping
1d 14h 10m left
$27.99
Buy It Now
Free Shipping
6h 3m left
$56.99
Buy It Now
Free Shipping
7d 12h 52m left
$28.99
Buy It Now
Free Shipping
17d 9h 19m left
$24.00
Buy It Now
The item is listed as a Top Rated Plus item
5d 0h 24m left
$42.00
Buy It Now
Free Shipping
23d 5h 24m left
$28.99
Buy It Now
Free Shipping
20d 9h 11m left
$28.99
Buy It Now
Free Shipping
The item is listed as a Top Rated Plus item
23d 7h 14m left
$28.99
Buy It Now
or Best Offer
Free Shipping
14h 44m left
$18.29
Buy It Now
or Best Offer
2d 1h 43m left
$26.95
Buy It Now
Free Shipping
9d 0h 29m left
$34.99
Buy It Now
27d 11h 8m left
$28.99
Buy It Now
Free Shipping
The item is listed as a Top Rated Plus item
1d 1h 15m left
$42.00
Buy It Now
Free Shipping
5h 5m left
$26.79
1 bid
Free Shipping
The item is listed as a Top Rated Plus item
2d 4h 41m left
$31.00
Buy It Now
Free Shipping
19h 56m left
$28.99
0 bids
Free Shipping
The item is listed as a Top Rated Plus item
1d 1h 10m left
$23.00
Buy It Now
19d 9h 27m left
$29.99
Buy It Now
Free Shipping
5d 7h 1m left
$17.70
0 bids
The item is listed as a Top Rated Plus item
3d 19h 57m left
$19.90
Buy It Now
or Best Offer
The item is listed as a Top Rated Plus item
1d 22h 32m left
$18.90
0 bids
The item is listed as a Top Rated Plus item
10d 13h 42m left
$32.99
Buy It Now
Free Shipping
2d 5h 27m left
$25.99
0 bids
Free Shipping
8d 6h 28m left
$45.00
Buy It Now
Free Shipping
2d 8h 48m left
$17.70
0 bids
19d 16h 8m left
$29.50
Buy It Now
or Best Offer
Free Shipping
4d 4h 14m left
$27.99
Buy It Now
21d 4h 41m left
$48.99
Buy It Now
Free Shipping

About Aquarium Refractometer

In order to measure the salinity (salt content) and gravity of your aquarium's water, you need to use an aquarium refractometer. These instruments can be purchased for around $30 to $70 dollars and are found in pet stores and via online retailers. Hydrometers can be inaccurate and hard to read over time. Refractometers are affordable, easy to use, and highly accurate. Most come with an adjustable eyepiece, carrying case, and screwdriver for simple calibration. They have to be tested and calibrated prior to shipping, so they are ready to be used out of the box. Even at very low salt levels, aquarium refractometers can give accurate readings. Why is this important? Well, sensitive tropical fish require very specific environments and one of these instruments can help you maintain the proper aquatic balance. To use an aquarium refractometer, you put one or two drops of your tank's water onto the prism glass and close the plate cover over the glass. The light that passes through the glass will slowly bend and show through onto an internal scale. The scale is then magnified through an eyepiece that lets you read the water's measurements. On the scale, there is a blue top portion and a white bottom portion. Where your colors intersect is your reading. One side will measure the salinity in your water while the other measures gravity. Consider your fish's specific needs when determining where the reading should be for your aquatic environment.