I bought a PH Sensor with silkscreen printed "www.auto-crtl.com and Logo_PHsensor v1.1" on the board. The website doesn't exist and I am having trouble getting it to work. It reads virtually the same despite the liquid it is immersed in. Please does anyone have a an idea where I can get a functional library to get it working?
Hi,
Welcome to the forum.
Please read the post at the start of any forum , entitled "How to use this Forum".
OR
http://forum.arduino.cc/index.php/topic,148850.0.html.
OPs Pics;
Can you post a link to where you bought the PH module?
Tom.. 
Hi,
Hi I just googled arduino ph module
Try this link, it has all the info, including sample arduino code;
Tom...