Hey all! I’m still pretty new to hydroponics, and my pH readings have been all over the place lately. I found this pH meter on Amazon and was wondering if anyone here has used it. Does it hold calibration well? Trying to avoid another week of sad lettuce. Thanks in advance!
https://www.amazon.com/dp/B06XKMH86J
https://www.amazon.com/dp/B06XKMH86J
