Easiest to use portable ph probe?

[Dave-T]

I'd like a portable PH probe to measure the ph in my kalk stirrer, and to use as a backup for my GHL system. Is there a type of probe that doesn't require constant calibration? I have a BlueLab PH probe that I never use, because of the need to calibrate it and keep the probe wet. Too much of a hassle for me.

 

[KrisReef]

I use Hanna for pH because I don't trust most pens and am also not interested in constant, necessary calibration for these items. I don't think there is any inexpensive reliable pH meters that are trustworthy and that don't require calibration. It's the nature of the beast, perhaps?

 

[Dave-T]

Thanks. I didn't say inexpensive. Are there any expensive ones that you don't need to calibrate? And that would work with the 12 ph level of a kalk solution?

 

[KrisReef]

Calibration, as far as I have heard, is necessary for these probe testers, but I Googel a look around, and what do you know! There are some that are advertising "no Need" to calibrate, but for professional users you can calibrate them if you want too?

Cheap at only $58.99

"NO CALIBRATION NEEDED: This is a small ph meter which no need calibration for normal use, only one key to operate, easy to bring and simple use. Perfect for any liquid test, wide use in lab, wine, juice, swimming pool and so on."

I almost want to get one just to see how it performs.

 

[Dave-T]

Calibration, as far as I have heard, is necessary for these probe testers, but I Googel a look around, and what do you know! There are some that are advertising "no Need" to calibrate, but for professional users you can calibrate them if you want too?

Cheap at only $58.99

"NO CALIBRATION NEEDED: This is a small ph meter which no need calibration for normal use, only one key to operate, easy to bring and simple use. Perfect for any liquid test, wide use in lab, wine, juice, swimming pool and so on."

I almost want to get one just to see how it performs.

Huh. Could you post a link?

 

[exnisstech]

maybe this one?
Amazon product ASIN B074J6NHMD

 

[KrisReef]

maybe this one?
Amazon product ASIN B074J6NHMD

Yes, that's the one. Sorry, I thought I added a link in the other post but I failed


Linking does not constitute a product endorsment. I have no expectation that this pen will funtion as claimed. Hope it does, but i don't know?

 

[Woodyman]

I would not trust the results without some type of calibration or verification. pH meters require constant verification and calibration to give accurate meaningful results. They drift overtime some quicker and more frequently than others.

 

[Randy Holmes-Farley Verified Community Expert]

maybe this one?
Amazon product ASIN B074J6NHMD

That's ridiculous. All it means is that a nonprofessional doesn't care about exact values to "need" calibration. Same claim could be made for any pH meter, except a few which may not actually let you bypass calibrating at least one.

There's nothing special about that pH device that makes it not need calibration.