PH Pen calibration

Originally Posted by Livaio

Will only do calibration every 1 month. For my hanna ph pen, my reading is off 0.1 every month. so i just tune it back..

Hi, Thank for the info. I thought everytime when I want to use it, I do calibration. No wonder my PH 7 solution very fast dry out and keep on buying.

It depends on the pH pen itself. Some pens with their probes getting worn old might need consistent calibrating while newer ones tend to be more more reliable in their readings.

Just pour a very small amount of the calibration water into the pen cap before you store it. It will help to keep the accuracy somewhat.

-Calvin

Originally Posted by the_r0ck

It depends on the pH pen itself. Some pens with their probes getting worn old might need consistent calibrating while newer ones tend to be more more reliable in their readings.

Just pour a very small amount of the calibration water into the pen cap before you store it. It will help to keep the accuracy somewhat.

-Calvin

Yes. I did it after using the ph pen. Will try again tonight after changing 20% of my water. Thank for all precious info.

thanks bros, looking into getting the pen.