Hanna pHep for sale

[jefnbl]

Hi all, selling this ph pen due to underutilised. $45.00.

[dleecool]

Hi,

Do we need to calibrate it? How long is the calibration period, once a year? And who can calibrate it?

[RAV-65]

Hi,

Do we need to calibrate it? How long is the calibration period, once a year? And who can calibrate it?

Had one of these before, very easy to use, super fast in getting a reading, good for lazy people like me...

There is a calibration knob on the pen itself, juz have to use a screwdriver(provided) to tweak the pen... Calibration is advise to be done often so as to maintain its accuracy... I use to dip it into some fresh water everytime I used it to rinse it and it maintained its accuracy pretty well.... Did a check after a few months with ph7.00 buffer and it was still accurate...

[Jameshong]

Hi all, selling this ph pen due to underutilised. $45.00.

which model r u selling....

HI 98106 , HI 98107 or HI 98108?

how long have u use it ?

[jefnbl]

Hmmm nobody wants

Anyway just took a picture of the ph pen