You are going to enjoy that Pinpoint meter, it is very accurate.
Be sure your calibration fluid
is the same temperature as your rez
when you do the calibration.
I calibrate at least once a week,
when I change out the nutes.
Your girls are looking happy.
.
I love it already, I open the door and I got my PH.
Thanks for the recommendation.
Dam, I forgot about the temp. I need to get some more 4.0
It came with a small amount but it was warmer then the res.
Again, Nice catch.
.