1-888-9-WEBPETS
(1-888-993-2738)
Certified Seal
Dogs Cats Fish Birds Reptiles Small Pets Pond
Captive Purity Refractometer
Click to Image Zoom

Captive Purity Refractometer

Read 66 Reviews

Write a Review

In stock: Buy now and your order will ship the next business day

Item #: CP2111P

$59.99
$59.99
Add to Wishlist

Quick Overview

The Captive Purity Refractometer is an incredibly accurate and easy to use device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Rea...
Product Description
Reviews

Captive Purity Refractometer Information



Part #: RHS-10ATC

The Captive Purity Refractometer is an incredibly accurate and easy to use device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Reads in percent and specific gravity. An absolute must for the serious marine hobbyist.

The Captive Purity Refractometer is an optical device (no batteries) dual scaled 0-100% specific gravity: 1.0 to 1.070. Calibrate with distilled water. Adjustable eyepiece, carrying case, pipette and calibration screw driver included. This model is ATC (automatic temperature compensating)

+ Display More
- Display Less

Captive Purity Refractometer Reviews

Average Ratings:

Unreliable Product Review by HSING YU LIANG (Posted on 2/26/14)
Rating
Unsatisfactory

Comments: Very unreliable, I have had to calibrate it every time when I use it. >"<

Good Product Review by nano_reef-2k (Posted on 2/26/14)
Rating
Great!

Comments: A well made product that works as advertised. Easy to use and easy to calibrate. I found the scale a little hard to read. A light would be the only thing that could make it better.

works good Product Review by SCOTT LUCAS (Posted on 2/26/14)
Rating
Excellent!

Comments: Easy to use, easy to see, and finally, one that really tells me what I need to know that is dependable time after time.

Great Product! Product Review by DOELL MESEY (Posted on 2/26/14)
Rating
Excellent!

Comments: Great product, easy to use and operate. I bought this because I have a 5 gallon nano aquarium(and a 75 gallon)and checking the salinity with a traditional swing arm Hydrometer was a ROYAL PAIN! Plus I didn't really trust the readings I was getting in the Hydrometer because you never know if you have all of the bubbles out. I love having the lighted version of this refractometer. I use reading glasses so I would imagine that if I had gotten the one without the light it would have been much harder to read. That being said, it is still a little difficult to count the exact lines (for salinity) but I can easily get a good idea of my salinity within a couple of seconds. My only bit of advice is before each use, wipe the glass and the cover with a lint-free cloth and after each use, wipe the glass and the cover with a paper towel first and then with a soft lint free cloth after. If there is any residue on the glass or the cover the reading will be off, even with RO or Distilled water.So don't keep recalibrating it, just make sure the surface is clean and lint free. All-in-all, this product works great and has saved me many headaches!

Poor quality construction Product Review by Patrick (Posted on 2/26/14)
Rating
Unsatisfactory

Comments: Hinge pin fell out very unhappy

Items Similar to Captive Purity Refractometer