Dan Shay
April 21, 2016
Verified Purchase
I bought the 4.0 and the 7.0 and they work just fine but, I was a little disappointed to see that these bottles have to be used up within 3 months or discarded once they've been opened, (according to the label anyway). While I use my Bluelab meter a lot, I don't use it nearly as much as some people do, it seems like overkill to calibrate my meter often enough to use up these bottles in that time.
I guess I'll have to look for smaller bottles next time I need some.
richieri1318483
March 12, 2021
Verified Purchase
I would've brought the Atlas solution combo it was cheaper . Since it didn't go though , the price on this was great . I brought the 7.0 @ the grow store , you don't use very much so you get your money's worth . It's used only once a month it'll last 5 or 6 months @ least
Darrell Lemke
May 20, 2015
Verified Purchase
I use nothing but Blue lab for all of my Ph and PPM/EC monitoring and love their consistent accuracy. Got to take care of your equipment and it will last much longer. I use nothing but BlueLab supplies.
Tyler
October 21, 2019
Verified Purchase
Just what I needed. Exactly what's advertised is what you get.
Peter Hackett
February 26, 2015
Verified Purchase
I would recommend. Great for my home organic herbs.
KImberly
September 05, 2017
Verified Purchase
It does what it says will do. It works perfectly.
Joan P.
August 30, 2015
Verified Purchase
Worth every cent. Calibrate monthly (minimum).
Robert Hollen
December 16, 2018
Verified Purchase
product as it was supposed to. No problems
Robert K.
October 09, 2016
Verified Purchase
What can I say it's calibration solution
JMaC
November 23, 2017
Verified Purchase
The only one I trust to be accurate.
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