RHINO TECHNOLOGY First Impressions

Easy to use.

If you let it sit in the tank overnight, it definitely gives an accurate reading. It's perfectly accurate based on the known calibration fluid. Functions just as it is supposed to. Plenty of info on YouTube and the web if you don't know how. I don't want to deal with temperature correction or. I've tried several different refractometers now and they are mostly the same. YOU WILL NOT get an accurate reading if there are bubbles on the needle.

  • Editor's Impressions Of The RHINO TECHNOLOGY
  • Accuracy [star rating='5']
  • Build Quality [star rating='4.4']
  • Value For Money [star rating='5']
  • Feature Set [star rating='5']


Other then that.

I tried it over and over and no bubbles! I don't know if that's a positive or negative but just different. 027, I'm so glad I bought this one and it came spot on. I got this to have a more accurate read than the hydrometer. Looks to provide very accurate readings. I will get one later but for now this will do, since im just starting. And it is much more accurate than my old salinity meter.

Overall Score

[star rating="5"]
(8 Points)
  • RHINO TECHNOLOGY Features & Specs
  • The Rhino Pet refractometer HR305 can be used to read Specific Gravity of Dog Urine, Specific Gravity of Cat Urine,and Serum or Plasma Protein.
  • We provide 2 years quality warranty and customize services for the Pet refractometer.
  • The surface of the refractometer is sprayed with Teflon,It has the characteristics of wear resistance, corrosion resistance, anti-static and anti-adhesion.
  • The Rhino Pet hand-held Refractometer come with portable holster, water bottle, calibration mini-screwdriver, english instruction manual, cleaning cloth, plastic pipette and case.
  • Rhino Pet refractometer with Automatic Temperature Compensation ( 50°F~86°F / 10°C~30°C ).
  • Manufacture: RHINO TECHNOLOGY

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