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calibrate

how often do u calibrate your PH pens ??  undecided

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Replies (12)
    • I keep 2 pens calibrated and when I start seeing different readings I will check both. Probably 3 times per grow. I got bit once because I was using one pen and by the time I realized I was off I was having issues. If you think about the cost of the pens in comparison to the time invested in the grow it makes sense to me to double check. 

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      • One thing I like about the Blue Lab Monitor is it well tell you when to recalibrate .

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        • i  use the blue lab pen and the guardian in my res tank and do the same thing texasbob says.most generally id say every couple months for me.

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          • i waz seeing calibrate so we did check it ......  thanks for the come back guys .....

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            • For me its when something doesnt seem quite right with the plants, PH is the #1 usual suspect so I start there. I recently found out the Blue Labs auto dosier probes dont last forever, but 3 years and $45 for the replacement seems reasonable. 

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              • I can see the wheels in your head turning king! sealed

                You know my deal. I use pH drops. no calibration necessary

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                • I calibrate every 2 weeks, it usually only moves a couple of 10ths.

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                  • Not enough great question I see I’m very lazy I do it once a grow a use cheap ones

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                    • i try 2 stay on top of mine i f``` up so much  and u have such great grows like i said u r the MAN MR Hulk bing green all over pays off dam the thumb !!!!!!!!! LOL

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                      • Thanks brother king

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                      • One or two times a month or about every 2 weeks.

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                        • Recalibrate my pen about every 2 weeks as well. Like you Cake when everything is the same it's more spot checking.

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