New Grower Ph pen

[peanut8]

ok I'm looking for a ph pen and I don't want to spend a lot of money can you all recommend one?

 

[Dr. Babnik]

ok I'm looking for a ph pen and I don't want to spend a lot of money can you all recommend one?

I have a HM Digital PH-80.
It was not expensive.

 

[briman]

HM Digital PH-200 not expensive either, but HM Digital has some of the best testing and have a great reputation. You can spend a pretty penny on a blue lab or a Hanna, but best bang for your buck would be the HM Digital line, IMO. With any pen, make sure you have storage solution in the cap at ALL times and calibrate it every month!

 

[Dr. Babnik]

HM Digital PH-200 not expensive either, but HM Digital has some of the best testing and have a great reputation. You can spend a pretty penny on a blue lab or a Hanna, but best bang for your buck would be the HM Digital line, IMO. With any pen, make sure you have storage solution in the cap at ALL times and calibrate it every month!

I like it.
It keeps stable after calibration and no drifting in the measurement.

 

[Dr. Babnik]

When I worked in the biochem lab, the pH was calibrated every day. In cell biology pH 7.4 means 7.4 not 7.6.

I like it.
It keeps stable after calibration and no drifting in the measurement.

 

[Passel]

Ideally calibrate before you use it every time. Especially with cheap ones from eBay, Amazon etc.