New Grower PH Pen for mixing nutes

[Need4Weed]

I finally got a Control Wizard soil ph tester last season, but now I'm having trouble keeping a ph pen for mixing nutes. I've bought several of the cheap ones, (-$10), and I need to find a better one for less than $50 US, (if that's even possible). Please post a link if possible ... Thanks!

 

[Need4Weed]

I just ordered this one with some storage solution. At least it's a Hanna.


Hanna Instruments HI99104 Educational pH Tester, 0.00 to 14.00 pH Measuring Range, +/-0.2 pH Accuracy, 0.01 pH Resolution
Sold by: Amazon.com LLCI
$36.00

 

[White Punk on Dope]

I just ordered this one with some storage solution. At least it's a Hanna.


Hanna Instruments HI99104 Educational pH Tester, 0.00 to 14.00 pH Measuring Range, +/-0.2 pH Accuracy, 0.01 pH Resolution
Sold by: Amazon.com LLCI
$36.00

I have went through 3 Hanna's so now I just buy the cheap ones. They seem to be just fine. Sometimes better.

 

[Need4Weed]

I have went through 3 Hanna's so now I just buy the cheap ones. They seem to be just fine. Sometimes better.

Ut-oh! Wonder if I should return mine?