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Hanna pHep for sale


jefnbl
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Hi,

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

:thanks:

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

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... :)

People do not plan to fail; Often they just fail to plan...

Wat I do to prevent myself from tearing my hair out... My stress remedy...

post-34-1105890976.jpg

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

phep.jpg

which model r u selling.... ;)

HI 98106 , HI 98107 or HI 98108?

how long have u use it ?

:thanks:

post-1182-049500100201281969137_thumb.gi

Knowing is not enough; we must apply. Willing is not enough; we must do. - Goethe

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