MOMENTAN AUSVERKAUFT
Aktuelle Folie {CURRENT_SLIDE} von {TOTAL_SLIDES}- Meistverkauft in Feuchtemessgeräte & pH-Meter
I tried to calibrate it several times with the calibration powder included with the but it kept giving me the same reading no matter which solition I used (acidic or alkaline) It was a waste if money, that's what it was...!
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