Refractometer. ( geand-index)

[Flyingbulldog]

http://www.grand-index.com/pro_detail.php?ProId=18

Anyone every purchased a refracting yet from grand index for $20?


Any suggestions?

 

[fort384]

This appears to be the same one bulkreefsupply.com sells, which I own. It seems to be a good tool. No complaints from me on it.

EDIT: Please don't post duplicate threads. The threads weren't showing because you are a new member and had a link in the thread - it causes new posts to go into a queue for approval. We do this to eliminate spammers.

 

[Holygral]

as long as you calibrate it and check it every so often, you should be fine

 

[Reefpete]

I bought it works like a charm and calibrated it with 5 stage ro di water ...IMO the calibration fluids a waste of money I tested with rodi water and the fluid and there was no difference

 

[Holygral]

Refractometers are best calibrated in the range of its intended use. Use a 35 ppt reference for measuring reefwater