does anyone have a hanna hi98127 and if so, does the cal tag on the screen mean its calibrated, or needs to be? i used mine the other day and i worked slick as shit! just not sure about the cal tag. my first grow and with the info i got from you guys its really not that hard. as long as you have the right tools. thanks you guys are plant savers!
hanna hi98127 cal tag?
- Thread starter dfxdig
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