/challenges-projects/design-challenges/vertical-farming/b/blog/posts/automated-green-house-blog-13-2---ph-control-measurement-portionThis Blog will cover how to measure pH in your aquaponics/hydroponics system, later we will be using this reading to control the pH. Take a look at the blog below to see why PH is an important factor and why we need to be controlling it. Bl...en-USTelligent Community 12https://community.element14.com/challenges-projects/design-challenges/vertical-farming/b/blog/posts/automated-green-house-blog-13-2---ph-control-measurement-portionThu, 19 Nov 2015 20:07:14 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:8e922b92-d8dc-49a5-82ee-bae6cf1f8d39DAB1<p>I am curious, how stable is the probe over time?</p><p>&nbsp;</p><p>You get the data you need for the calibration test, but have you looked at the values over time?</p><p>&nbsp;</p><p>DAB</p><img src="https://community.element14.com/aggbug?PostID=719&AppID=120&AppType=Weblog&ContentType=0" width="1" height="1">