The storage case is well made as well.

The storage case is well made as well.  Read Less

Works great and is easy to clean and read.

Works great and is easy to clean and read.  Read Less

Or maybe keep as a backup to calibrate and test the quality product from time to time.

Or maybe keep as a backup to calibrate and test the quality product from time to time.  Read Less

Factory calibration was off a bit, and could have been temperature related.

Factory calibration was off a bit, and could have been temperature related.  Read Less

I spent half the money and it is completely accurate and easy to use.

I spent half the money and it is completely accurate and easy to use.  Read Less

Accurate and easy to use all for about half the price of ones you’d find at big box stores.

Accurate and easy to use all for about half the price of ones you’d find at big box stores.  Read Less

I purchased this due to its price point.

I purchased this due to its price point.  Read Less

I was skeptical as it seemed very simple and inexpensive.

I was skeptical as it seemed very simple and inexpensive.  Read Less

I had just finished setting up my phytoplankton reactor, awaiting this delivery, and arrival of the phytoplankton in todays mail.

I had just finished setting up my phytoplankton reactor, awaiting this delivery, and arrival of the phytoplankton in todays mail.  Read Less

It certainly is a refractometer, only thing that would make it better is if it came with calibration fluid so you don’t have to...  Read More

It certainly is a refractometer, only thing that would make it better is if it came with calibration fluid so you don’t have to waste packaging on two orders  Read Less