Suggestions for handheld PH pen tester

[maverick2402]

Does anyone know which handheld ph pen tester is better,the Milwaukee or the Hanna and doesn't cost an arm and a leg.I am having a hard time with the color chart test because I am partially color blind when it comes to colors that are close such as the ones on the ph test charts that are out there.I noticed that Hanna makes a few different models too.

 

[patoloco]

Any electronic tester will do, as long as you do the required mainteinence and routine calibration required.

 

[mooman]

havent taken the plunge to buy a ph meter yet, but I do post and lurk alot on Apistogramma.com. Those guys are serious about thier ph and tds. For what it's worth, Ive heard more refferences to hanna meters by the big boys there.