Refractometre/PinPoint Salanity monitor/Milwalkee Conductivi

[StirCrazy]

Originally Posted by jakets

Swing arm salinity hydrometer

J

in my opinion they are junk, I have one that is 0.002 out one way and another that is 0.003 out the other way.. I will be investing in a pinpoint salinity meter very soon. as for PH, test kits are hard to read and very dependent on your color perception so I recomend a PH pen or other type of electronic monitor. If a 2 miniut calibration every 4 months is to much just think about the 5 to 10 minuits needed to do a test each time you want to know what your PH is

electronic guages / meters are way more accurate and conveniant but they do cost money. manual test kits are for people who want to save money.

Steve