/challenges-projects/design-challenges/in-the-air-design-challenge/b/blog/posts/in-the-air-challenge---auto-greenhouse-post-3Another day, another delivery. This time, a shiny Tenma pH probe has arrived - a delicate looking affair, with the tip sealed into a tiny bottle containing some liquid. This weekend I will hook up the parts to do some initial testing of the sensor.&amp;nen-USTelligent Community 12https://community.element14.com/challenges-projects/design-challenges/in-the-air-design-challenge/b/blog/posts/in-the-air-challenge---auto-greenhouse-post-3Sun, 09 Nov 2014 19:18:01 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:aabd5d90-0dae-4e22-9aaa-384f9d1cd94dProblemchild0<p>Where did you get your PH probe from and did it require much in the way of conditioning amps etc?</p><img src="https://community.element14.com/aggbug?PostID=19153&AppID=102&AppType=Weblog&ContentType=0" width="1" height="1">